Paediatric RCTs and CCTs: an analysis of trends over time from 1948 to 2006. Poster presentation at the 16th Cochrane Colloquium: Evidence in the era of globalisation; 2008 Oct 3-7; Freiburg, Germany [abstract]      
Pain assessment in older people with dementia: literature review      
The paired availability design: a proposal for evaluating epidural analgesia during labor [published erratum appears in Stat Med 1995 Aug 30;14(16):1841]      
Palliative chemotherapy preferences and factors that influence patient choice in incurable advanced cancer.      
Palmtop-assisted self-interviewing for the collection of sensitive behavioral data: randomized trial with drug use urine testing      
Paper epidemic: a guide to the use of the biomedical literature      
Paper or screen, mother tongue or English: which is better?      
[Paper or screen, mother tongue or English--which is better?]. [Norwegian]      
Paper standard gamble: a paper-based measure of standard gamble utility for current health.      
Paper Standard Gamble: the reliability of a paper questionnaire to assess utility      
Paper versus web-based administration of the Pelvic Floor Distress Inventory 20 and Pelvic Floor Impact Questionnaire 7      
Papers published by members of the Croatian Academy of Medical Sciences, registered in international bibliographic data bases in the period 1986-1990      
Papers submitted from outside and inside the United States: an analysis of reviewer bias [abstract]      
Papers supporting advertisements in medical journals: a continuation of the case-control study [abstract]      
A Paradox-based data collection and management system for multi-center randomized clinical trials      
The "parallel-cohort RCT": Novel design aspects and application in the Kids-DOTT trial of pediatric venous thromboembolism      
Parallel search methods of a document database in a distributed computer system: a case study      
Parametric approaches to quality-adjusted survival analysis. International Breast Cancer Study Group      
Parametric extrapolation of survival estimates with applications to quality of life evaluation of treatments. International Breast Cancer Study Group      
Parametric randomization-based methods for correcting for treatment changes in the assessment of the causal effect of treatment.      
Paranoid disorder: the Soviet viewpoint      
Parent satisfaction in a multi-site acute trial of risperidone in children with autism: a social validity study.      
Parental consent in paediatric clinical research.      
Parental decisions to decline participation in a neonatal trial: an exploration of uninformed refusal [abstract]      
Parental factors impacting the enrollment of children in cardiac critical care clinical trials      
Parental perception of time and decision-making in neonatal research      
Parental perceptions and attitudes about informed consent in clinical research involving children.      
Parental preferences for neonatal resuscitation research consent: a pilot study.      
Parents' attitudes to children's participation in randomized controlled trials      
Parents' attitudes to their HIV-infected children being enrolled into a placebo-controlled trial: the PENTA 1 trial      
Parents' experiences of novel research participation [abstract]      
Parents on the web: risks for quality management of cough in children      
Parents' perceptions of randomization in pediatric clinical trials.      
Parents' perceptions of randomization in pediatric clinical trials. Children Cancer Group.      
Parents' perceptions of research with newborns.      
Paroxetine, Panorama and user reporting of ADRs: consumer intelligence matters in clinical practice and post-marketing drug surveillance      
ParsMedline: establishment of a Web-based bibliographic database related to Iranian health and medical research      
Part-whole question order effects.      
Partial and differential verification in diagnostic accuracy studies [abstract]      
Partial and differential verification in diagnostic accuracy studies. Oral presentation at the 17th Cochrane Colloquium; 2009 Oct 11-14, Singapore [abstract]      
The partially-randomised patient-preference design: lessons from the REFLUX Trial [abstract]      
Participant and parent experiences in the parenteral insulin arm of the diabetes prevention trial for type 1 diabetes.      
Participant perception of the role and benefits of study coordinators: results of a pilot study. CARE Study Coordinators. [abstract]      
Participant recruitment and retention in a pilot program to prevent weight gain in low-income overweight and obese mothers      
Participant recruitment in a virtually interconnected world: comparative effectiveness and considerations of bias [abstract]      
Participant recruitment in the Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT).      
Participant recruitment to the Coronary Primary Prevention Trial      
Participant responses to retrospective surveys of child maltreatment: does mode of assessment matter?      
Participant retention in clinical trials of candidate HIV vaccines.      
Participant satisfaction in the African American Study of Kidney Disease and Hypertension (AASK) Pilot Study      
Participants in prospective, randomized clinical trials for resected non-small cell lung cancer have improved survival compared with nonparticipants in such trials      
Participants' perceptions of a phase I colon cancer chemoprevention trial      
Participants' perceptions of motivation, randomisation and withdrawal in a randomised controlled trial of interventions for prevention of depression      
Participants' reasons for taking part, and views on increasing participation, in a population based epidemiological study [abstract]      
Participants who left a multiple-wave cohort study had similar baseline characteristics to participants who returned      
Participating in a trial in a critical situation: a qualitative study in pregnancy.      
Participating in the United Kingdom Prospective Diabetes Study (UKPDS): a qualitative study of patients' experiences.      
Participating surgeons' experience with and beliefs in the procedures evaluated in a randomized controlled trial [abstract]      
Participation and adherence among older men and women recruited to the Beta-Carotene and Retinol Efficacy trial (CARET)      
Participation and retention in a study of female condom use among women at high STD risk.      
Participation and successful patient recruitment in primary care.      
Participation bias in a population-based echocardiography study      
Participation in a clinical trial influences the future management of patients with gastro-oesophageal reflux disease in general practice.      
[The participation in a clinical trial on pressure ulcer as an opportunity for education]      
Participation in a clinical trial: the patients' point of view      
Participation in a clinical trial: views of children and young people with diabetes      
Participation in a mail survey of international marketers: effects of pre-contact and detailed project explanation      
Participation in a women's breast cancer risk counseling trial. Who participates? Who declines? High Risk Breast Cancer Consortium.      
Participation in biomedical research: the consent process as viewed by children, adolescents, young adults, and physicians.      
Participation in cancer clinical trials: a systematic review of the barriers, modifiers and benefits [abstract]      
Participation in cancer clinical trials: race-, sex-, and age-based disparities      
Participation in cancer trials: recruitment of underserved populations      
Participation in clinical studies among patients infected with HIV-1 in a single treatment centre over 12 years      
Participation in clinical trials and long-term outcomes in Alzheimer's disease.      
Participation in clinical trials as viewed by the patient: understanding cultural and emotional aspects which influence choice.      
Participation in epidemiologic studies: survey of practice [abstract]      
Participation in occupational health longitudinal studies: predictors of missed visits and dropouts      
Participation in research and access to experimental treatments by HIV-infected patients.[see comment]      
Participation in research: informed consent, motivation and influence.      
Participation in research studies: factors associated with failing to meet minority recruitment goals      
[Participation in studies improves treatment strategies and individual patient care in the participating centres]      
Participation in substance abuse clinical trials: comparing gender and racial/ethnic groups [abstract]      
Participation in the Ischemic Optic Neuropathy Decompression Trial: sex, race, and age      
Participation in trauma research: is there evidence of harm?      
Participation in two phase II prophylactic HIV vaccine trials in the UK      
Participation of African Americans in a smoking cessation trial: a quantitative and qualitative study      
Participation of children in clinical research: factors that influence a parent's decision to consent.      
Participation of community medical oncologists in clinical research trials      
Participation of disadvantaged parents in child care research.      
Participation of epidemiologists and/or biostatisticians and methodological quality of meta-analyses [abstract]      
Participation of epidemiologists and/or biostatisticians and methodological quality of published controlled clinical trials      
Participation of Life-Science Faculty in research relationships with industry      
Participation of minorities in cancer research: the influence of structural, cultural, and linguistic factors      
Participation of patients 65 years of age or older in cancer clinical trials      
Participation of pregnant women in clinical trials: will they participate and why?      
Participation of subjects on multiple clinical trials: the National Cancer Institute of Canada Cancer Clinical Trials Group MA.20 experience [abstract]      
Participation rates in epidemiologic studies      
Partitioning methods for classification and decision making in medicine      
The partnership between breast cancer advocates and scientists.      
Partnership with an African American sorority to enhance participation in cancer genetics research.      
Passive consent for clinical research in the age of HIPAA.      
Passive smoking and lung cancer: a publication bias?      
Passport to publication? Do methodologists publish after Cochrane Colloquia? Oral presentation at the Joint Cochrane and Campbell Colloquium; 2010 Oct 18-22; Keystone, Colorado, USA [abstract]      
Past international HTA conferences: where have all the abstracts gone? [abstract]      
Paternal cell immunization for recurrent miscarriage: a comparison of meta-analyses with and without individual patient data [abstract]      
Patient accrual and interim statistical analysis in long-term randomized clinical trials: the French chronic lymphocytic leukemia CLL 80 protocol as a case study      
Patient accrual and quality of participation in a multicentre study on myeloma: a comparison between major and minor participating centres      
Patient adherence in the treatment of depression.      
Patient adherence to HIV medication regimens: a review of published and abstract reports. [Review]      
Patient adherence to treatment: three decades of research. A comprehensive review. [Review]      
Patient and clinic factors predictive of missed visits and inactive status in a multicenter clinical trial. The Macular Photocoagulation Study Group.      
Patient and clinician collaboration in the design of a national randomized breast cancer trial.      
Patient and family perceptions of recruitment to cancer clinical trials (CCTs) [abstract]      
Patient and physician attitudes toward breast cancer clinical trials: developing interventions based on understanding barriers.      
Patient and physician barriers to enrollment on breast cancer clinical trials [abstract]      
Patient and psychiatrist ratings of hypothetical schizophrenia research protocols: assessment of harm potential and factors influencing participation decisions      
Patient aspects: a review of fifty-eight Danish HTA reports      
Patient attitudes to clinical trials: development of a questionnaire and results from asthma and cancer patients.      
Patient attitudes to the Internet and analysis of the potential role of a dedicated colorectal website -a prospective study.      
Patient attitudes toward granting consent to participate in perioperative randomized clinical trials.      
Patient-based outcome assessment instruments in acupuncture research      
Patient beliefs and attitudes towards medicines: do they impact on medication adherence? Results from a primary care randomised controlled trial [abstract]      
Patient co-operation and the sensitivity of clinical trials      
Patient compliance with paper and electronic diaries      
Patient comprehension and reaction to participating in a double-blind randomized clinical trial (ISIS-4) in acute myocardial infarction      
Patient confidentiality in the research use of clinical medical databases      
Patient decision aids to support clinical decision making: evaluating the decision or the outcomes of the decision      
Patient decision making: an evaluation of two different methods of presenting information about a screening test.      
Patient education and diabetes research: a failure! Going beyond the empirical approaches      
Patient education in nuclear medicine - is there a role for the World Wide Web?      
Patient education on mobile devices: an e-health intervention for low health literate audiences      
Patient entry into clinical trials [abstract]      
Patient entry into randomized controlled trials of colorectal cancer treatment: factors influencing participation      
Patient expectations for placebo treatments commonly used in osteopathic manipulative treatment (OMT) clinical trials: a pilot study.      
Patient expectations in placebo-controlled randomized clinical trials.      
Patient expectations of benefit from phase I clinical trials: linguistic considerations in diagnosing a therapeutic misconception.      
The patient experience of community hospital - the process of care as a determinant of satisfaction      
Patient-important outcomes in registered diabetes trials      
Patient information - patients in clinical trials are more satisfied [abstract]      
Patient information websites      
Patient internet use surrounding cancer clinical trials: clinician perceptions and responses      
Patient involved in evidence-based medicine: a baseline survey of current status      
Patient involvement in health research: a contribution to a systematic review on the effectiveness of treatments for degenerative ataxias      
Patient managed clinical trial      
Patient mediated interventions to increase adoption of evidence: aids and barriers to an intervention in chronic obstructive pulmonary disease (COPD) [abstract]      
Patient motivations surrounding participation in phase I and phase II clinical trials of cancer chemotherapy.      
Patient notification and follow-up after suspension of treatment protocols. experience from four clinical trials of treatments for AIDS-related CMV retinitis.      
Patient or client? The opinions of people attending a psychiatric clinic      
Patient-oriented methotrexate information sites on the Internet: a review of completeness, accuracy, format, reliability, credibility, and readability      
Patient outcomes in historical comparators compared with randomised-controlled trials      
Patient participation in a systematic review on the effectiveness of treatments for degenerative ataxias [abstract]      
Patient participation in health research: research with and for people with spinal cord injuries.      
Patient participation in research in the managed care environment: key perceptions of members in an HMO.      
Patient perception of a long-term clinical trial: experience using a close-out questionnaire in the Studies of Left Ventricular Dysfunction (SOLVD) Trial. SOLVD Close-out Working Group.      
Patient-physician communication concerning participation in cancer chemotherapy trials.      
Patient-physician fit: an exploratory study of a multidimensional instrument      
The patient population using the Internet differs from the population of patients found in the clinic: implications for online clinical matching programs [abstract]      
Patient practices, perceptions and tolerability of elastic compression stockings after deep venous thrombosis: results of a two-site survey [abstract]      
Patient preference for cancer therapy: an overview of measurement approaches. [Review]      
Patient preference for either the EORTC QLQ-C30 or the FACIT Quality Of Life (QOL) measures: a study performed in patients suffering from carcinoma of an unknown primary site (CUP).      
Patient preference in a randomized study comparing medical and surgical abortion at 10-13 weeks gestation.      
Patient preference in clinical trials for headache medication: the patient's view.      
Patient preferences and expectations for care: determinants in patients with lumbar intervertebral disc herniation      
Patient preferences in randomised trials: threat or opportunity?      
Patient preferences regarding possible outcomes of lung resection: what outcomes should preoperative evaluations target?      
Patient preferences versus physician perceptions of treatment decisions in cancer care.      
Patient recruitment into a randomised controlled trial of supervised exercise therapy in sedentary women treated for breast cancer.      
Patient recruitment to a randomized clinical trial of behavioral therapy for chronic heart failure.      
Patient registration and treatment allocation in multicenter clinical trials using a FAX-OCR system.      
Patient reported clinical outcomes: the challenges and implications for randomised controlled trials [abstract]      
Patient-reported outcomes better discriminate active treatment from placebo in randomized controlled trials in rheumatoid arthritis.      
The Patient-Reported Outcomes Measurement Information System (PROMIS) developed and tested its first wave of adult self-reported health outcome item banks: 2005-2008      
Patient response in a large follow-up by mail [abstract]      
Patient retention in a clinical trial: a lesson from the rofecoxib (VIOXX) study.      
Patient satisfaction and health-related quality of life after treatment for colon cancer.      
Patient satisfaction and health-related quality of life after treatment for colon cancer.      
The Patient Satisfaction Scale - an empirical investigation into the Finnish adaptation      
Patient satisfaction survey after breast conservation surgery versus clinician opinion of breast cosmesis - a prospective study [abstract]      
Patient satisfaction with clinical trial participation.      
Patient selection bias in primary percutaneous coronary intervention trials: a critical issue.      
Patient surveys in general practice: a randomised trial of an instant lottery ticket to increase return rate.      
Patient understanding of research: developing and testing of a new questionnaire.      
Patient value and preference in evidence-based medicine      
Patient versus clinician symptom reporting using the National Cancer Institute Common Terminology Criteria for Adverse Events [abstract]      
Patient versus clinician symptom reporting using the National Cancer Institute Common Terminology Criteria for Adverse Events: results of a questionnaire-based study      
Patients' action during their cardiac event: qualitative study exploring differences and modifiable factors.      
[Patients' and physicians' perceptions on participation in a clinical trial: results on a survey in a French hospital]      
Patients and the Internet: guidance for evidence-based choices      
Patients as partners in a health research agenda setting: the feasibility of a participatory methodology      
Patients' attitudes to participation in clinical trials.      
Patients' attitudes to participation in clinical trials [abstract]      
Patients' attitudes to the use of placebos: results from a New Zealand survey      
Patients' attitudes toward informed consent for intravenous contrast media      
Patients bringing information to primary care consultations: a cross-sectional (questionnaire) study of doctors' and nurses' views of its impact      
Patients' consent preferences regarding the use of their health information for research purposes: a qualitative study.      
Patients' decision-making process of participating in Phase I oncology studies [abstract]      
Patients' decision-making process regarding participation in phase I oncology research      
Patients enrolled in coronary intervention trials are not representative of patients in clinical practice: results from the Euro Heart Survey on Coronary Revascularization.      
Patients enrolled in large randomized clinical trials of antiplatelet treatment for prevention after transient ischemic attack or ischemic stroke are not representative of patients in clinical practice: The Netherlands Stroke Survey      
Patients' evaluation of informed consent to postponed information: cohort study      
Patients excluded from an antidepressant efficacy trial.      
Patients' experiences and views of clinical trials      
Patients' experiences of intervention trials on the treatment of myocardial infarction: is it time to adjust the informed consent procedure to the patient's capacity?      
Patients in phase I trials of anti-cancer agents in Japan: motivation, comprehension and expectations.      
Patients involved in clinical research are more concerned about intrinsic and traditional research ("publish or perish") conflicts of interests (COI) than potential financial conflicts: results of interviews with advanced cancer patients enrolling in phase I trials [abstract]      
Patients or research subjects? A qualitative study of participation in a randomised controlled trial of a complex intervention.      
Patients' perceptions of information provided in clinical trials      
Patients' perceptions of informed consent in acute myocardial infarction research: a Danish study.      
Patients' perceptions of informed consent in acute myocardial infarction research: a questionnaire based survey of the consent process in the DANAMI-2 trial.      
Patients' perceptions of physicians communication and outcomes of the accrual to trial process.      
Patients' perceptions of research in emergency settings: a study of survivors of sudden cardiac death      
Patients' perceptions of their participation in a clinical trial for postoperative Crohn's disease.      
Patients' perceptions on informed consent and the quality of information disclosure in clinical trials      
Patients' perceptions on participation in a cancer chemoprevention trial.      
The patient's perspective of commercial clinical trials.      
Patients' point of view in heart failure trials.      
Patients' preference in indomethacin trials: an overview      
Patients' preferences and randomised trials      
Patients' preferences for adjuvant chemotherapy in early breast cancer: what makes AC and CMF worthwhile now?      
Patients' preferences within randomised trials: systematic review and patient level meta-analysis      
Patients' preferences within randomised trials: Systematic review and patient level meta-analysis      
Patients' priorities concerning health research: the case of asthma and COPD research in the Netherlands.      
Patients (pts) understanding of phase II trial designs and informed consent (IC) [abstract]      
Patients' understanding of randomised controlled trials depends on their education      
Patients' understanding of their own disease and survival potential in patients with metastatic breast cancer      
Patients' use of the Internet for medical information.      
Patients' versus nurses' assessments of pain and sedation after cesarean section      
Patients' views on the utility of quality of life questionnaires in head and neck cancer: a randomised trial.      
Patients were more consistent in randomized trial at prioritizing childbirth preferences using graphic-numeric than verbal formats      
Patients who are receiving concomitant medications should not systematically be excluded from phase I studies.      
Patients willing to try colonoscopy without sedation: associated clinical factors and results of a randomized controlled trial.      
Patients' willingness to enter clinical trials: measuring the association with perceived benefit and preference for decision participation.      
Patients' willingness to participate in placebo-controlled trials of antihypertensive therapy      
Patients with chronic heart failure encountered in daily clinical practice are different from the "typical" patient enrolled in therapeutic trials.      
Patients with pulmonary arterial hypertension in clinical trials: who are they?      
[Pattern of foreign journal utilization as seen from frequency of citations--from the Bulletins of National Institute of Hygienic Sciences (1979-1983)]      
Pattern of publication of ophthalmic abstracts in peer-reviewed journals      
The pattern of publishing previously rejected articles in selected journals      
Patterns and effectiveness of lipid-lowering therapies in a managed care environment.      
Patterns of co-authorship in international epidemiology      
Patterns of enrollment on cooperative group studies. An analysis of trends from the Los Angeles County Cancer Surveillance Program      
Patterns of hormone replacement therapy in a population-based cohort of postmenopausal German women. Changes after HERS II and WHI.      
Patterns of information search for decision making: the effects of information abstraction      
Patterns of intra-cluster correlation from primary care research to inform study design and analysis.      
Patterns of media cover over the course of a health technology's life cycle: the case of Norplant [abstract]      
Patterns of patient enrollment in randomized controlled trials      
Patterns of recruitment into acute myeloid leukaemia (AML) 15 and outcome for young patients with AML at a single referral centre      
Patterns of research. Oral contraceptives and cervical cancer      
Patterns of self-citation across disciplines (1980-1989)      
Patterns of use of tamoxifen and aromatase inhibitors: a population-based observational study [abstract]      
Paying attention to gender and poverty in health research: content and process issues      
Paying clinicians to join clinical trials: a review of guidelines and interview study of trialists      
Paying research subjects: participants' perspectives      
Payment to healthcare professionals for patient recruitment to trials: a systematic review.      
Payment to healthcare professionals for patient recruitment to trials: systematic review and qualitative study      
Payments to children and adolescents enrolled in research: a pilot study      
Peaks and pits of using large data bases to measure quality of care      
Pediatric cardiology research in 1990: a review of abstracts submitted to the Society for Pediatric Research, American Academy of Pediatrics, and American Heart Association Scientific Sessions      
Pediatric emergency medicine research: a critical evaluation.      
The pediatric internet.      
Pediatric journals on the Internet.      
Pediatric phase I drug tolerance: a review and comparison of recent adult and pediatric phase I trials.      
Pediatric surgery on the Internet: is the truth out there?      
Pediatricians' attitudes toward randomized controlled trials involving children      
PEDro. A database of randomized trials and systematic reviews in physiotherapy      
The PEDro scale is a valid measure of the methodological quality of clinical trials: a demographic study      
The PEDro scale provides a more comprehensive measure of methodological quality than the Jadad scale in stroke rehabilitation literature.      
Peer assessment of journal quality in clinical neurology      
Peer review: a simplified approach.      
Peer review--a study of reliability      
Peer review and editorial decision-making      
Peer review and editorial decision-making at major biomedical journals [abstract]      
The peer review and editorial process: a limited evaluation.      
Peer review: are there other ways? [abstract]      
Peer review at the Deutsche Forschungsgemeinschaft.      
Peer review, authorship, ethics, and conflict of interest      
Peer review in 18th-century scientific journalism.      
Peer review in a small and a big medical journal: case study of the Croatian Medical Journal and the Lancet.      
Peer review in journals indexed in Index Medicus      
Peer review in journals published by Oxford Journals [abstract]      
Peer review in PLoS Medicine.      
Peer review in publication: factors associated with the full-length publication of studies presented in abstract form at the annual meeting of the Society for Medical Decision Making.      
[Peer review in requests for subsidy (see comments)]      
Peer review in small and big medical journals [abstract]      
Peer review in the Croatian Medical Journal from 1992 to 1996      
Peer review: inter-reviewer agreement during evaluation of research grant evaluations.      
A Peer Review Intervention for Monitoring and Evaluating sites (PRIME) that improved randomized controlled trial conduct and performance      
Peer review is an effective screening process to evaluate medical manuscripts      
Peer review of domestic and international manuscripts in a journal from the scientific periphery [abstract]      
The peer review of manuscripts - in need for improvement      
Peer review of research abstracts      
Peer review of scientific papers      
Peer review of statistics in medical research: the other problem. [Review]      
Peer-review practices of psychological journals: the fate of published articles, submitted again      
Peer-review publication of a new drug technology following initial appearance at a large hematology conference: implications for patients, clinicians, researchers and policy-makers. Poster presentation at the 16th Cochrane Colloquium: Evidence in the era of globalisation; 2008 Oct 3-7; Freiburg, Germany [abstract]      
Peer-reviewed articles and public health. The mad cow affair in Italian newpapers      
Peer-reviewed publication following presentation at a regional surgical meeting.      
Peer-reviewed publication of clinical trials completed for pediatric exclusivity.      
Peer-reviewer bias against unconventional medicine? [abstract]      
Peer reviewer opinions about manuscript-specific acknowledgment [abstract]      
Peer reviewer recommendations and ratings of manuscript quality for accepted and rejected manuscripts [abstract]      
Peer reviewers' recommendations at the Journal of General Internal Medicine, 2004-2008; style or substance? [abstract]      
Peering at peer review revealed high degree of chance associated with funding of grant applications      
Peering through the barriers in GPs' explanations for declining to participate in research: the role of professional autonomy and the economy of time      
People respond to surveys when the price is right.      
Perceived and actual barriers in performing randomised controlled trials about the effectiveness of physiotherapy in children with cerebral palsy [abstract]      
Perceived barriers and reasons behind the participation in a randomized controlled trial in Japan [abstract]      
Perceived benefit after participating in positive or negative/neutral heart failure trials: the patients' perspective      
Perceived benefits of and barriers to participation in a phase I/II colon cancer chemoprevention trial.      
Perceived challenges to obtaining informed consent for a time-sensitive emergency department study of pediatric status epilepticus: results of two focus groups      
Perceived effects on patients' health of participation in the atrial fibrillation follow-up investigation of rhythm management study.      
Perceived patient comprehension in acute and chronic cardiovascular clinical trials      
Perceived value of providing peer reviewers with abstracts and preprints of related published and unpublished papers      
Percent change in wound area of diabetic foot ulcers over a 4-week period is a robust predictor of complete healing in a 12-week prospective trial.      
[The percentage of articles which were accepted or rejected for publication in the Dutch Journal of Medicine in 1997]      
Perception of quality of life before and after disclosure of trial results: a report from the Program on the Surgical Control of the Hyperlipidemias (POSCH)      
Perception of risk information. Similarities and differences between Danish and Polish general practitioners.      
[Perception of written and oral information by 50 healthy volunteers from a monocentric study]      
Perceptions and attitudes towards different grading systems from clinical guidelines developers [letter]      
Perceptions and conflict of interest disclosures among peer reviewers [abstract]      
Perceptions of African-American culture and implications for clinical trial design.      
Perceptions of authorship criteria: effects of student instruction and scientific experience      
Perceptions of cancer patients and their physicians involved in phase I trials.      
Perceptions of equipoise are crucial to trial participation: a qualitative study of men in the ProtecT study      
Perceptions of informed consent by participants in a prostate cancer prevention study.      
Perceptions of labour pain by mothers and their attending midwives.      
Perceptions of NHS decision-makers of NICE interventional procedures guidance - a qualitative study [abstract]      
Perceptions of parents on the participation of their infants in clinical research      
[Perceptions of patients and physicians involved in clinical trials: an overview of the literature]      
Perceptions of research utilization: comparisons between health care professionals, nursing students and a reference group of nurse clinicians.      
Percutaneous coronary intervention versus coronary bypass graft surgery for patients with medically refractory myocardial ischemia and risk factors for adverse outcomes with bypass: The VA AWESOME multicenter registry: comparison with the randomized clinical trial.      
"Perfect health" versus "disease free": the impact of anchor point choice on the measurement of preferences and the calculation of disease-specific disutilities      
A performance and failure analysis of SAPHIRE with a MEDLINE test collection      
Performance assessment model for guideline-recommended pharmacotherapy in the secondary prevention of coronary artery disease and treatment of left ventricular dysfunction      
Performance-based readability testing of participant information for a Phase 3 IVF trial      
Performance of methods for meta-analysis of diagnostic test accuracy studies when few studies are availabl. Oral presentation at the 17th Cochrane Colloquium; 2009 Oct 11-14, Singapore [abstract]      
Performance of online biomedical databases in rheumatology      
Performance of published search strategies for studies of diagnostic test accuracy (SDTAs) in Medline and Embase [abstract]      
Performance of research ethics committees in Spain. A prospective study of 100 applications for clinical trial protocols on medicines [see comments]      
The performance of tests of publication bias and other sample size effects in systematic reviews of diagnostic test accuracy was assessed.      
Performance of the trim and fill method in the presence of publication bias and between-study heterogeneity.      
Performances of 27 MEDLINE systems tested by searches with clinical questions      
Performing cost-effectiveness analysis by integrating randomized trial data with a comprehensive decision model: application to treatment of acute ischemic stroke      
Performing meta-analysis with incomplete statistical information in clinical trials.      
Performing systematic reviews of clinical trials of acupuncture: problems and solutions.      
Perinatal clinical epidemiology      
Perinatal pathology in the context of a clinical trial: attitudes of bereaved parents.      
The periodic health examination      
Perioperative parenteral nutrition: a meta-analysis      
Perpetuation of inappropriate meta-analysis methods? Analysis of systematic reviews cited by systematic reviews. Oral presentation at the Joint Cochrane and Campbell Colloquium; 2010 Oct 18-22; Keystone, Colorado, USA [abstract]      
Persistence of contradicted claims in the literature.      
Persistence of medical change at implementation of clinical guidelines on medical practice: a controlled study in a cancer network.      
Person-time analysis of paired community intervention trials when the number of communities is small      
Personal and nonpersonal incentives in mail surveys: immediate versus delayed inducements.      
Personal digital assistant-based drug information sources: potential to improve medication safety      
Personal physicians as study investigators: impact on patients' willingness to participate in clinical trials      
Personal reflections on lessons learned from randomized trials involving newborn infants from 1951 to 1967      
Personality characteristics of volunteers in Phase 1 studies and likelihood of reporting adverse events      
Personality profiles of normal healthy research volunteers: a potential concern for clinical drug trial investigators?      
[Personality traits of women participating in a breast cancer prevention trial] [Italian]      
Personalization and offers of results: effects on response rates.      
Personalization as a response inducement technique in mail surveys.      
Personalization of mail surveys: too much of a good thing?      
Personalization of the outside envelope in mail surveys.      
Personalization, respondent anonymity, and response distortion in mail surveys.      
Personalization strategies, response rate and response quality in a mail survey.      
Personalizing mail questionnaire correspondence.      
Personalizing mail surveys: a replication and reassessment.      
Personally addressed hand-signed letters increase questionnaire response: a meta-analysis of randomised controlled trials.      
The perspective of patients with vascular disease on participation in clinical trials.      
A perspective on African American participation in clinical trials      
Perspectives of a migrant: impressions of commissioning HTA research in Canada and the UK [abstract]      
Perspectives of clinical research coordinators on disclosing financial conflicts of interest to potential research participants      
Perspectives of evidence-based surgery. [Review]      
Perspectives on evidence-based practice from consumers in the US public mental health system      
Perspectives on health technology assessment in Latin America. The case of perinatal care in the literature      
Perspectives on medical research involving men in schizophrenia and HIV-related protocols.      
Perspectives on pediatric outcomes: a comparison of parents' and children's rating of quality of life in an orthopaedic population [abstract]      
Perspectives on the National Institute for Health and Clinical Excellence's recommendations to use health technologies only in research      
Perspectives on the value of American Society of Clinical Oncology clinical guidelines as reported by oncologists and health maintenance organizations.      
Persuading by citation: an analysis of the references of fifty-three published reports of phenylpropanolamine's clinical toxicity      
Perusing the literature: comparison of MEDLINE searching with a perinatal trials database      
Perusing the literature. Methods of accessing MEDLINE and related databases      
Perusing the literature via citation links [published erratum appears in Comput Biomed Res 1993 Aug;26(4):413]      
Pharm-ing cyberspace: the Internet as a tool for evidence based pharmacotherapy      
Pharmaceutical advertisements in leading medical journals: experts' assessments [see comments]      
Pharmaceutical advertisements in medical journals received in a medical clinic: are we having "too much of a good thing"?      
Pharmaceutical company funding and its consequences: a qualitative systematic review      
Pharmaceutical industry sponsorship and research outcome and quality: systematic review.      
Pharmaceutical industry's barriers and preferences to conduct clinical drug trials in Finland: a qualitative study      
Pharmaceutical involvement in breast cancer clinical trials [abstract]      
Pharmaceutical treatment studies in autism and ADHD: a design based review of study quality.      
Pharmaceutical trials in general practice: the first 100 protocols. An audit by the clinical research ethics committee of the Royal College of General Practitioners.      
Pharmacists' online information literacy: an assessment of their use of Internet-based medicines information      
Pharmacists' utilization and interest in usage of personal digital assistants in their professional responsibilities      
Pharmacists versus nonpharmacists in adverse drug event detection: a meta-analysis and systematic review.      
Pharmacological manipulation of height: qualitative review of study populations and designs.      
Pharmacology and medication books' publishing in Spain: analysis of the period 1974-1998      
Pharmacovigilance and local literature: an Italian bibliography [abstract]      
Phase I participants' views of quality of life and trial participation burdens.      
Phase I trials in cancer patients: participants' perceptions.      
Phase I trials in pediatric oncology: perceptions of pediatricians from the United Kingdom Children's Cancer Study Group and the Pediatric Oncology Group.      
Phase II trials published in 2002: a cross-specialty comparison showing significant design differences between oncology trials and other medical specialties.      
Phenomena of retraction: reasons for retraction and citations to the publications      
Phenomena of retraction. Reasons for retraction and citations to the publications.      
A philosophical analysis of the evidence-based medicine debate.      
PHLS primary care consultation - infectious disease and primary care research and service development priorities.      
Phone respondents reported less mental health problems whereas mail interviewee gave higher physical health ratings      
Physical activity questionnaires for adults: a systematic review of measurement properties      
Physician attitudes toward applications of computer data base systems.      
Physician awareness and assessment of the results of an RCT [abstract]      
Physician concurrence with primary care guidelines for persons with HIV disease.      
Physician conformity and patient adherence to ACE inhibitors and ARBs in patients with diabetes, with and without renal disease and hypertension, in a medicaid managed care organization.      
A physician-directed intervention: teaching and measuring better informed consent      
Physician gender effects in medical communication: a meta-analytic review      
Physician interpretations and textbook definitions of blinding terminology in randomized controlled trials.      
Physician interpretations and textbook definitions of blinding terminology in randomized controlled trials [see comments]      
Physician knowledge, attitudes and practices regarding a widely implemented guideline.      
Physician opinion about electronic publications.      
Physician participation in a randomized clinical trial for ocular melanoma      
Physician participation in research surveys. A randomized study of inducements to return mailed research questionnaires.      
Physician perspectives on increasing minorities in cancer clinical trials: an Eastern Cooperative Oncology Group (ECOG) Initiative      
Physician prescribing decisions: the effects of situational involvement and task complexity on information acquisition and decision making      
Physician response to a mailed survey. An experiment in timing of payment.      
Physician response to patient reports of adverse drug effects: implications for patient-targeted adverse effect surveillance.      
Physicians and nurses focus on different aspects of guidelines when deciding whether to adopt them: an application of conjoint analysis      
Physicians and the pharmaceutical industry: is a gift ever just a gift?      
Physicians and their use of information: a survey comparison between the United States, Canada, and the United Kingdom      
Physicians' attitudes toward clinical trials and their relationship to patient accrual in a Nordic multicenter study on myeloma      
Physicians' attitudes toward evidence based obstetric practice: a questionnaire survey.      
Physicians' attitudes towards and reasons for participation in the Candesartan Antihypertensive Survival Evaluation in Japan (CASE-J) trial.      
Physicians' beliefs and behaviour during a randomized controlled trial of episiotomy: consequences for women in their care.      
Physicians' choice in using Internet and fax for patient recruitment and follow-up in a randomized controlled trial.      
Physicians' perception of the effects of Internet health information on the doctor-patient relationship      
Physicians' preferences for active-controlled versus placebo-controlled trials of new antihypertensive drugs.      
Physicians' preferences for information sources: a meta-analytic study      
Physicians' reasons for not entering eligible patients in a randomized clinical trial of surgery for breast cancer      
Physicians' reasons for not entering their patients in a randomized controlled trial in Japan.      
Physicians' use of the personal digital assistant (PDA) in clinical decision making      
Physiological responses to different WEB page designs      
Physiotherapy literature in medical indexes: how comprehensive is index coverage of journals cited frequently by five physiotherapy journals?      
The pi-index: a new indicator for assessing scientific impact      
Pilot-recruitment study for osteoporosis trial: direct mailing versus GP-preselection [abstract]      
A pilot study for a randomized controlled and patient preference trial of buprenorphine versus methadone maintenance treatment in the management of opiate dependent patients      
Pilot study of the knowledge and attitude towards evidence based medicine of otolaryngology higher surgical trainees.      
A pilot study on the quality of data management in a cancer clinical trial      
A pilot study on the use of decision theory and value of information analysis as part of the NHS Health Technology Assessment programme.      
A pilot study to assess the feasibility and usefulness of collecting symptom data by short message service (SMS) text message [abstract]      
A pilot study to quantify parental anxiety associated with enrollment of an infant or toddler in a phase III vaccine trial      
A pilot survey of African-American physician perceptions about clinical trials.      
A pitfall in the meta analysis of hazard ratios      
Pitfalls and successes of peer review in neurosurgery      
The pitfalls of a systematic MEDLINE review in palliative medicine: symptom assessment instruments      
Pitfalls of and controversies in cluster randomization trials.      
The pitfalls of incomplete data set analysis. The TIMI Study Group. [abstract]      
The pitfalls of translating search strategies across a wide range of bibliographic databases: a case study from injury prevention/safety promotion [abstract]      
Pityriasis versicolor: quality of studies.      
The place of evidence-based medicine among primary health care physicians in Riyadh region, Saudi Arabia.      
The place of knowledge and evidence in the context of Australian general practice nursing      
The place of readability formulas in technical communication      
[Place of "Ukrainskogo biokhimicheskogo zhurnal" (Ukrainian Biochemical Journal) in the world information flow in the field of biochemistry]      
Placebo adverse events in headache trials: headache as an adverse event of placebo      
Placebo control groups in trials of major depressive disorder among older patients.      
Placebo-controlled antidepressant studies in Europe - a feasibility survey.      
Placebo-controlled trials and active-control trials in the evaluation of new treatments. Part 1: ethical and scientific issues [see comments].      
Placebo-controlled trials and active-control trials in the evaluation of new treatments. Part 2: practical issues and specific cases [see comments].      
Placebo-controlled trials of Chinese herbal medicine and conventional medicine comparative study.      
Placebo controls in psychotherapy research: a sine qua non or a placebo for research problems?      
The placebo effect      
The placebo effect      
The placebo effect.      
Placebo effect-adjusted assessment of quality of life in placebo-controlled clinical trials      
The placebo effect in asthma drug therapy trials: a meta-analysis      
Placebo effect in double-blind clinical trials: a review of interactions with medications      
The placebo effect in healthy volunteers: influence of experimental conditions on the adverse events profile during phase I studies      
Placebo effect in the acute treatment of migraine: subcutaneous placebos are better than oral placebos.      
[Placebo effect in the drug therapy of depression]      
The placebo effect of ankle taping in ankle instability.      
Placebo effects in oncology. [Review]      
Placebo effects of caffeine on cycling performance.      
Placebo efficacy in childhood and adolescence migraine: an analysis of double-blind and placebo-controlled studies      
The placebo in psychosocial outcomes      
Placebo intervention compared to no treatment      
Placebo interventions for all clinical conditions (Cochrane Methodology Review).      
Placebo response and antidepressant clinical trial outcome.      
Placebo response in clinical randomized trials of analgesics in migraine. [Review]      
The placebo response in neuropathic pain trials: it is not what you think. Poster presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
The placebo response in Parkinson's disease. Parkinson Study Group      
Placebo response in randomized controlled trials of antidepressants for pediatric major depressive disorder      
The placebo response in studies of acute migraine      
Placebo response in studies of major depression: variable, substantial, and growing.      
Placebo response of non-pharmacological and pharmacological trials in major depression: a systematic review and meta-analysis      
Placebo response rates in clinical trials. A meta-analysis [abstract]      
Placebo versus best-available-therapy control group in clinical trials for pharmacologic therapies: which is better?      
Placebo/nocebo symptom reporting in a sham herbal supplement trial.      
Placebos: a review of the placebo response      
Placebos, active control groups, and the unpredictability paradox      
Placebos, placebo effect, and the response to the healing situation: the evolution of a concept.      
Placebos that harm: sham surgery controls in clinical trials.      
Placebos used in clinical trials for Chinese herbal medicine      
The plain language summary: Cochrane's most valuable product? [abstract]      
Planned equivalence or noninferiority trials versus unplanned noninferiority claims: are they equal?      
Planning a cluster randomized controlled trial: methodological issues      
Planning a cluster randomized trial with unequal cluster sizes: practical issues involving continuous outcomes.      
Planning and analysis of cross-over trials in infertility      
Planning and analysis of repeated measures at key time-points in clinical trials sponsored by pharmaceutical companies      
Planning, designing and implementing a prospective meta-analysis study [abstract]      
Planning for closeout - from Day One      
Planning for posttrial access to antiretroviral treatment for research participants in developing countries      
Planning for the long term study of efficacy and side effects [abstract]      
Planning multicenter clinical trials: a biostatistician's perspective      
Platelets, aspirin, and cardiovascular disease      
Play the winner for phase II/III clinical trials      
Play the winner rule and the controlled clinical trial      
"Playing their parts": the experiences of participants in a randomized sham-controlled acupuncture trial.      
A plea for a discipline of health and medical evaluation      
Policies, practices, and attitudes of North American medical journal editors [see comments]      
A policy effectiveness-feasibility loop? Promoting the use of evidence to support the development of healthy public policy [abstract]      
The Policy Liaison Initiative: increasing usability of the Cochrane Library for policy makers [abstract]      
Poliomyelitis vaccine; a report on field trials in Southern Alameda County in 1954      
Pooled metaanalysis of radiographic progression: comparison of Sharp and Larsen methods      
Pooled standardised mean differences and estimated heterogeneity between trials depend on the type of assessment tool analysed: meta-epidemiological study. Poster presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
Pooling continuous data: methods for skewed data [abstract]      
Pooling data for Number Needed to Treat: no problems for apples      
Pooling data from five stroke prevention clinical trials versus performing a meta-analysis. The Atrial Fibrillation Investigators. [abstract]      
Pooling diagnostic publications: watch for outliers! [abstract]      
Pooling dietary data using questionnaires with open-ended and predefined responses: implications for comparing mean intake or estimating odds ratios      
Pooling, meta-analysis, and the evaluation of drug safety      
Pooling of animal experimental data reveals influence of study design and publication bias      
Pooling overdispersed binomial data to estimate event rate.      
Poor access to clinical trials among community cancer patients requiring chemotherapy for recurrent or progressive disease: limitations of current cancer cooperative groups [abstract]      
Poor English skills as a barrier for Japanese health care professionals in learning and practising evidence-based medicine.      
Poor participation of nulliparous women in a low dose aspirin study to prevent preeclampsia.      
The poor quality of early evaluations of magnetic resonance imaging      
The poor quality of information about laparoscopy on the World Wide Web as indexed by popular search engines      
Poor quality of reporting confounding bias in observational intervention studies: a systematic review.      
Poor reporting and inadequate searches were apparent in systematic reviews of adverse effects.      
Poor reporting of quality of life outcomes in dermatology randomized controlled clinical trials.      
Poor reporting of scientific leadership information in clinical trial registers.      
Poor reporting of search strategy and conflict of interest in over 250 narrative and systematic reviews of two biologic agents in arthritis: a systematic review      
Poor statistical design in research on humans: the role of committees on human research      
Poor systematic reviews and meta-analyses may be misleading      
Poorly executed and inadequately documented? An analysis of the literature      
Popular press coverage of eight National Institutes of Health consensus development topics      
Popularity and findability through log analysis of search terms and queries: the case of a multilingual public service website      
Populating an international web-based randomized trials register in the social, behavioral, crime, and education sciences      
Population characteristics in cervical cancer trials: search for external validity.      
Population groups: indexing, coverage, and retrieval effectiveness of ethnically related health care issues in health sciences databases      
Population reach and recruitment bias in a maintenance RCT in physically active older adults      
The population risk as an explanatory variable in research synthesis of clinical trials      
A population study of 50-year-old men. An analysis of the non-participation group.      
Population substructure and control selection in genome-wide association studies.      
Portals to Wonderland: health portals lead to confusing information about the effects of health care      
Portfolio of public health services evidence-based [abstract]      
Portsmouth operative delivery trial: a comparison of vacuum extraction and forceps delivery      
Posing the research question: not so simple      
Position paper by the UKCCCR elderly cancer patients in clinical trials working group.      
Positive-outcome bias and other limitations in the outcome of research abstracts submitted to a scientific meeting      
Positive outcome bias and other limitations in the selection of research abstracts for a scientific meeting [abstract]      
Positive-outcome bias: comparison of emergency medicine and general medicine literatures      
[Possibilities and problems of Belgian general practitioners: Initiating a clinical trial]      
Possibility of using Chinese electronic databases for systematic review of herb medicine - a pilot study in psoriasis [abstract]      
Possible aids to remove the burdens during informed consent process in clinical trials: A case of National Surgical Adjuvant Study of Breast Cancer 02 (N-SAS BC 02) [abstract]      
Possible bias presenting the results of systemic reviews: an example and a suggested solution [abstract]      
Possible factors affecting response to postal questionnaires: findings from a study of general practitioner services.      
Possible importance to the outcome of randomized clinical trial of the written informed consent [abstract]      
Possible misleading conclusions due to inappropriate approach in dealing with data extraction from factorial design randomized trials [abstract]      
Post-consent assessment of dental subjects' understanding of informed consent in oral health research in Nigeria      
Post-convention dissemination of papers presented at ASHA National Conventions, 1967-1976: stuttering, hearing aids, and alaryngeal speech.      
Post hoc choice of cut points introduced bias to diagnostic research.      
Post-randomisation exclusions: the intention to treat principle and excluding patients from analysis      
Post-recruitment confirmation of informed consent by SMS      
Post-study aspirin intake and factors motivating participation in a colorectal cancer chemoprevention trial.      
Postal combinations in postal questionnaire surveys - another view.      
Postal questionnaires: double-sided printing compared with single-sided printing.      
Postal surveys: a review of articles published in the Medical Journal of Malaysia between 1991-2000. [Review]      
Postal surveys of physicians gave superior response rates over telephone interviews in a randomized trial.      
Postal surveys versus electronic mail surveys. The tortoise and the hare revisited      
Postal surveys: who are the non-responders and do they differ from the responders? [abstract]      
Postcard reminders versus replacement questionnaires and mail survey response rates from a professional population.      
Postmarketing surveillance and adverse drug reactions: current perspectives and future needs.      
Postmenopausal estrogen and the risk of breast cancer [see comments]      
Postmenopausal estrogen and the risk of breast cancer. The need for randomized trials [editorial; comment]      
Postoperative adjuvant chemotherapy of gastric cancer: scrutiny into the clinical evidence based on quality assessment of medical literature of randomized controlled trials      
Postpublication criticism and the shaping of clinical knowledge      
The potential and limitations of meta-analysis      
Potential ethnic modifiers in the assessment and treatment of Alzheimer's disease: challenges for the future.      
Potential for conflict of interest in the evaluation of suspected adverse drug reactions: use of cerivastatin and risk of rhabdomyolysis      
Potential for technical errors and subverted allocation can be reduced if certain guidelines are followed: examples from a web-based survey      
Potential impact of methodological quality on a systematic review of spinal manipulation for infants with colic.      
Potential influence of health systems in accrual to clinical trials in lymphoma.      
Potential pooling opportunities: cancer      
Potential research participants' views regarding researcher and institutional financial conflicts of interest.      
Potential use of routine databases in health technology assessment.      
Potentials and promise      
The Potsdam international consultation on meta-analysis      
The poverty of media richness theory: explaining people's choice of electronic mail vs. voice mail      
Power and sample size for a collection of 2x2 tables      
Power dressing and meta-analysis: incorporating power analysis into meta-analysis.      
Power of logrank test and Cox regression model in clinical trials with heterogeneous samples      
The power of tests to detect differences between periodontal treatments in published studies      
The powerful placebo.      
The powerful placebo effect: fact or fiction?      
The powerful placebo in cough studies?      
A practical approach for eliciting expert prior beliefs about cancer survival in phase III randomized trial      
A practical approach to evidence grading      
Practical approaches to minimize problems with missing quality of life data      
Practical aspects in data monitoring: a brief review      
Practical aspects of conducting a pragmatic randomised trial in primary care: patient recruitment and outcome assessment      
Practical aspects of decision making in clinical trials: the coronary drug project as a case study.      
Practical aspects of sharing controls between case-control studies.      
The practical effects of errors in reference lists in nursing research journals [see comments]      
Practical estimates of the effect of publication bias in meta-analysis      
Practical experience of minimisation in clinical trials.      
Practical issues in data monitoring of clinical trials: summary of responses to a questionnaire at NIH      
Practical issues in equivalence trials      
Practical issues in quality of life assessment in multicentre trials conducted by the Swiss Group for Clinical Cancer Research      
A practical method for collecting food records in a prospective breast cancer survivorship study [abstract]      
Practical methodology of meta-analyses (overviews) using updated individual patient data      
Practical methodology of meta-analyses (overviews) using updated individual patient data. Cochrane Working Group      
Practical methodology of meta-analysis of individual patient data using a survival outcome.      
Practical methods for incorporating summary time-to-event data into meta-analysis.      
Practical problems in collaborative clinical trials      
Practical problems in interim analyses, with particular regard to estimation      
Practical Statistics for Medical Research      
Practice and experience with peer review in international health technology assessment (HTA) organisations.      
Practice and policy of measuring quality of life and health economics in cancer clinical trials: a survey among co-operative trial groups.      
Practice guidelines and uptake of genetic testing for Factor V Leiden [abstract]      
The practice of evidence-based medicine in an acute medical ward: retrospective study.      
The practice of meta-analysis in the UK and USA: evidence for an Atlantic divide? [abstract]      
The practice of meta-analysis in the UK and usa: evidence for an Atlantic divide? [abstract]      
[The practice of systematic reviews. II. Searching and selection of studies]      
[The practice of systematic reviews. V. Heterogeneity between studies and subgroup analysis]      
[Practice of systematic reviews. VI. Searching, selection and methodological evaluation of etiological research]      
Practices and perceptions of thrombosis physicians regarding the use of elastic compression stockings after deep venous thrombosis: results of a Canadian survey [abstract]      
A practitioner's guide to meta-analysis      
Pragmatic comparison of the Cochrane Highly Sensitive Search Strategy and the HEDGES Team strategies in four electronic databases [abstract]      
A pragmatic critical appraisal instrument for search filters: introducing the CADTH CAI      
A pragmatic-explanatory continuum indicator summary (PRECIS): a tool to help trial designers      
A pragmatic-explanatory continuum indicator summary (PRECIS): a tool to help trial designers      
The Pragmatic-Explanatory Continuum Indicator Summary (PRECIS) instrument was useful for refining a randomized trial design: experiences from an investigative team      
Pragmatic randomised controlled trials in parenting research: the issue of intention to treat.      
Pragmatic randomised controlled trials in psychiatry      
Pragmatic trials in primary care. Methodological challenges and solutions demonstrated by the DIAMOND-study.      
Pragmatic vs. explanatory: an adaptation of the PRECIS tool helps to judge the applicability of systematic reviews for daily practice      
Pragmatism in the TARGIT trial encouraged wider participation of centres yet yielded an unexpected homogeneous patient profile [abstract]      
Pre-entry characteristics of participants in the Lipid Research Clinics' Coronary Primary Prevention Trial      
Pre-exposure prophylaxis research: a quantitative ethics appraisal [abstract]      
Pre-notification did not increase response rate in addition to follow-up: a randomized trial      
Pre-specifying sample size calculations and statistical analyses in randomised trials: comparison of protocols to publications [abstract]      
Pre-trial evaluation of the potential for unblinding in drug trials: a prototype example.      
Precise reporting of traditional Chinese medicine interventions in randomized controlled trials      
Preconsent education about research processes improved African Americans' willingness to participate in clinical research      
Predicting attrition in a pediatric asthma intervention study      
Predicting compliance in a breast cancer prevention trial.      
Predicting EuroQoL EQ-5D preference scores from the SF-12 Health Survey in a nationally representative sample      
Predicting missing quality of life data that were later recovered: an empirical comparison of approaches      
Predicting recruitment to clinical trials [abstract]      
Predicting the need to update a systematic review. Poster presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
Prediction and decision making using Bayesian hierarchical models      
Prediction of benefit from carotid endarterectomy in individual patients: a risk-modelling study. European Carotid Surgery Trialists' Collaborative Group      
Prediction of dropping out in time-limited, interpretive individual psychotherapy.      
Predictive ability of meta-analyses of randomized controlled trials      
Predictive modeling and heterogeneity of baseline risk in meta-analysis of individual patient data      
A predictive modelling algorithms for meta-analysis of individual patient data [abstract]      
Predictors of adherence and contamination in a randomized trial of exercise in colorectal cancer survivors.      
Predictors of attendance and dropout at the Lung Health Study 11-year follow-up      
Predictors of diagnostic accuracy and safe management in difficult diagnostic problems in family medicine.      
Predictors of inactivation and reasons for participant inactivation during a skin cancer chemoprevention study.      
Predictors of locating women six to eight years after contact: internet resources at recruitment may help to improve response rates in longitudinal research.      
Predictors of non-participation in a randomized intervention trial to reduce environmental tobacco smoke (ETS) exposure in pediatric cancer patients      
Predictors of participant retention in two chemoprevention feasibility trials      
Predictors of participation in an HIV risk reduction intervention for socially deprived Latino women: a cross sectional cohort study.      
Predictors of participation in genetic research in a primary care physician network.      
Predictors of patient participation in telemedicine studies [abstract]      
Predictors of placebo response: a retrospective analysis.      
Predictors of placebo response in pooled lamotrigine neuropathic pain clinical trials      
Predictors of publication: characteristics of submitted manuscripts associated with acceptance at major biomedical journals      
Predictors of refusal during a multi-step recruitment process for a randomized controlled trial of arthritis education.      
Predictors of refusal to participate: a longitudinal health survey of the elderly in Australia      
Predictors of study completion and withdrawal in a randomized clinical trial of a pediatric diabetes adherence intervention      
Predictors of the benefits women consider necessary to make adjuvant chemotherapy (ACT) worthwhile for early breast cancer (EBC) [abstract]      
Predictors of time to publication of manuscripts rejected by major biomedical journals [abstract]      
Predictors of user perceptions of web recommender systems: how the basis for generating experience and search product recommendations affects user responses      
Preference assessment of recruitment into a randomized trial for adolescent idiopathic scoliosis      
Preference-based measurement of health-related quality of life (HRQL) in children with chronic musculoskeletal disorders (MSKDs).      
Preference-based outcome measures in cost-utility analyses. A 20-year overview      
Preference for equity as a framing effect.      
Preference in random assignment: implications for the interpretation of randomized trials      
Preferences for and expectations about experimental therapy among participants in randomized trials [abstract]      
Preferences for different health states of children with congenital heart disease: comparing parents with health professionals.      
Preferences for schizophrenia-related health states: a comparison of patients, caregivers and psychiatrists.      
Preferences for schizophrenia treatment outcomes among public policy makers, consumers, families, and providers.      
The preferences of 600 patients for different descriptions of randomisation.      
Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement      
Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement      
[Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement (Chinese edition)]      
Pregnancy outcome among non-participants in a trial on ultrasound screening.      
A preliminary analysis on systematic reviews produced in China [abstract]      
Preliminary assessment of the effect of more informative (structured) abstracts on citation retrieval from MEDLINE      
Preliminary development of the new individualized HDQoL questionnaire measuring quality of life in adult hypopituitarism      
Preliminary evaluation of factors associated with premature trial closure and feasibility of accrual benchmarks in phase III oncology trials      
Preliminary report of survey of problems in disseminating best evidence to dental professionals of China      
Preliminary report on hand searching results of 15 Chinese dental journals from the earliest first volume of 1953 to the volumes of 2000      
Preliminary reports and the rates of publication of follow-up reports in peer-reviewed, indexed journals      
Preliminary results, methodological considerations and recruitment difficulties of a randomised clinical trial comparing two treatment regimens for patients with headache and neck pain      
Preliminary study of rapid vs. exhaustive HTA reports: comparison of their usefulness in the decision-making process [abstract]      
A preliminary survey on the influence of rapid health technology assessments      
Premature discontinuation of clinical trial for reasons not related to efficacy, safety, or feasibility.      
Prenotification and industrial survey responses.      
Preoperative autologous donation decreases allogeneic transfusion but increases exposure to all red blood cell transfusion: results of a meta-analysis. International Study of Perioperative Transfusion (ISPOT) Investigators.      
Preparing an overview of reviews: lessons learned. Poster presentation at the 17th Cochrane Colloquium; 2009 Oct 11-14, Singapore [abstract]      
Preparing and maintaining systematic reviews      
Preparing and updating systematic reviews of randomized controlled trials of health care      
Preparing raw clinical data for publication: guidance for journal editors, authors, and peer reviewers      
Preparing raw clinical data for publication: guidance for journal editors, authors, and peer reviewers      
Prepayment was superior to postpayment cash incentives in a randomized postal survey among physicians.      
Preplanned meta-analyses in a clinical trial aimed at reducing frailty and injuries in older persons. FICSIT Study Group. [abstract]      
Prepublication release of journal articles: impact of the electronic medium on the research message [abstract]      
Prerandomization: an alternative to classic randomization. The effects on recruitment in a controlled trial of arthroscopy for osteoarthrosis of the knee      
Presence of abstracts in non-English journals indexed in MEDLINE (1981-1990)      
Presentation and explanation of medical decision models using the World Wide Web      
Presentation and subsequent publication rates of phase I oncology clinical trials.      
Presentation in relation to publication of results from clinical trials      
Presentation of nonfinal results of randomized controlled trials at major oncology meetings      
[Presentation of the international, emergency medicine relevant periodical spectrum and ethics and authorship and publication]      
Presentation on websites of possible benefits and harms from screening for breast cancer: cross sectional study.      
Presenting clinical trial information: a comparison of methods      
Presenting meta-analysis as a typical 2x2 table [abstract]      
Presenting risk information to people with diabetes: evaluating effects and preferences for different formats by a web-based randomised controlled trial.      
Presenting risks and benefits to patients.      
Presenting the results of a Cochrane review to policy makers in a video format. Oral presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
Presenting the results of Cochrane Systematic Reviews to a consumer audience: a qualitative study      
President's page: doctors, placebos and a "letter from the King".      
PRESS: Peer Review of Electronic Search Strategies      
Press releases from biomedical publications and their impact on mass media [abstract]      
Press releases of science journal articles and subsequent newspaper stories on the same topic      
Press releases. Translating research into news      
Pressure ulcer care in Spain: nurses' knowledge and clinical practice      
Presumed benefit: lessons from the American experience with marrow transplantation for breast cancer      
Pretesting of questionnaires.      
Pretreatment attrition and childhood social phobia: parental concerns about medication.      
Prevailing judgments about society's willingness to pay for a QALY or Life-Year Gained [abstract]      
Prevalence and factors associated with use of placebo control groups in randomized controlled trials in psoriasis: a cross-sectional study.      
The prevalence and impact of overt and covert duplicate publication of randomised controlled trials in renal transplantation [abstract]      
Prevalence and outcomes of pharmaceutical industry-sponsored clinical trials involving clozapine, risperidone, or olanzapine      
Prevalence and problems of updated reviews: a survey and discussion      
Prevalence of articles with honorary authors and ghost authors in peer-reviewed medical journals      
Prevalence of honorary and ghost authorship in Cochrane reviews      
Prevalence of honorary and ghost authorship in six general medical journals, 2009 [abstract]      
The prevalence of negative studies with inadequate statistical power: an analysis of the plastic surgery literature      
The prevalence of outcome reporting bias in trials (the ORBIT study). Oral presentation at the 16th Cochrane Colloquium: Evidence in the era of globalisation; 2008 Oct 3-7; Freiburg, Germany [abstract]      
Prevalence of symptom control and palliative care abstracts presented at the Annual Meeting of the American Society for Therapeutic Radiology and Oncology.      
The prevalence of underpowered randomized clinical trials in rheumatology.      
Prevalence study of the randomized controlled trials in the Journal of Intellectual Disability Research: 1957-1994      
Preventing febrile seizures in children with oral diazepam: can a controlled trial truly be "double-blind?".      
Preventing HIV/AIDS risk behavior among youth      
Preventing infections in cancer patients: what influences the guidelines? Oral presentation at the 16th Cochrane Colloquium: Evidence in the era of globalisation; 2008 Oct 3-7; Freiburg, Germany [abstract]      
Prevention of low back-pain in the workplace - different "evidence" in different disciplines? The example of ergonomics [abstract]      
Prevention of suboptimal beta-blocker treatment in patients with myocardial infarction      
Preventive health information on the Internet. Qualitative study of consumers' perspectives      
Previous trials of dissemination were identified.      
Primary care nurses using guidelines in Thailand: a randomized controlled trial      
Primary care physician visit continuity: a comparison of patient-reported and administratively derived measures      
Primary care physicians' attitudes, knowledge, and practices related to cancer clinical trials      
Primary journal selection using citations from an indexing service journal: a method and example from nursing literature      
Primary outcome verification in a multicenter clinical trial. The NICHD MFMU Network. [abstract]      
Primary outcomes reported in abstracts and - do they agree? Oral presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
Primary prevention of cardiovascular diseases by lipid-lowering treatment in German general practice: results from GPs ignoring guidelines and risk calculators.      
Primary prevention studies and the healthy elderly: evaluating barriers to recruitment      
Primary, secondary, and meta-analysis of research      
Primary studies in the field of addictions: sailing the specialised regiser of trials of the Cochrane group on drugs and alcohol (CDAG) [abstract]      
Primer: assessing the efficacy and safety of nonpharmacologic treatments for chronic rheumatic diseases.      
Primer postcard improves postal survey response rates.      
Primigravid women's views of being approached to participate in a hypothetical term cephalic trial of planned vaginal birth versus planned cesarean birth      
Principles and indicators of successful consumer involvement in NHS research: results of a Delphi study and subgroup analysis.      
Principles for defining adverse events in behavioral intervention research: lessons from a family-focused adolescent drug abuse trial      
Principles for international registration of protocol information and results from human trials of health related interventions: Ottawa statement (part 1) [erratum appears in BMJ. 2005 May 28;330(7502):1258]      
Principles for modeling propensity scores in medical research: a systematic literature review      
Principles for modeling propensity scores in medical research [abstract]      
Principles for strengthening the integrity of clinical research.      
Principles of medical statistics      
Print format and sender recognition were related to survey completion rate.      
Print versus electronic journals: a preliminary investigation into the effect of journal format on research processes.      
Printed signatures and response rates.      
Prior biological knowledge-based approaches for the analysis of genome-wide expression profiles using gene sets and pathways      
Prior convictions: Bayesian approaches to the analysis and interpretation of clinical megatrials.      
Priorities for adult cancer nursing research: a West Australian replication.      
Priorities for antiretroviral therapy research in sub-Saharan Africa: a 2002 consensus conference in Zambia.      
Priorities for cancer nursing research. A Canadian replication.      
Priorities for disclosure of the elements of informed consent for research: a comparison between parents and investigators.      
Priorities for midwifery research in Perth, Western Australia: a Delphi study.      
Priorities for nursing research in Korea.      
Priorities for research on mental health in primary care settings.      
Priorities for treatment research from different professional perspectives.      
Priorities in mental health research: an update.      
Priorities in mental health research: the results of a live research project.      
Priorities of consumers, providers, and family members in the treatment of schizophrenia.      
Prioritisation of Cochrane reviews for consumers and the public to promote evidence-based health care. Poster presentation at the 16th Cochrane Colloquium: Evidence in the era of globalisation; 2008 Oct 3-7; Freiburg, Germany [abstract]      
Prioritisation of health technology assessment. The PATHS model: methods and case studies [review]      
Prioritisation of research recommendations from a national needs assessment programme.      
Prioritising HTA. Instruments and areas to address in the Swiss health system by working with focus groups and Delphi experts.      
Prioritising primary care group interventions: an evidence-based approach [abstract]      
Prioritising the research agenda: assessment of payback [abstract]      
Prioritising the updating of systematic reviews. Poster presentation at the 16th Cochrane Colloquium: Evidence in the era of globalisation; 2008 Oct 3-7; Freiburg, Germany [abstract]      
Prioritizing guideline topics: development and evaluation of a practical tool      
Prioritizing investments in health technology assessment. Can we assess potential value for money?      
Priority areas for clinical research in palliative care nursing.      
Priority issues in Latino mental health services research      
Priority setting approach for a health technology assessment program in Chile [abstract]      
Priority setting for health research: lessons from developing countries.      
Priority setting for health technology assessment at CADTH      
Priority-setting for health technology assessment at CADTH [abstract]      
Priority setting for health technology assessment in Brazilian public health system [abstract]      
Priority setting for health technology assessment in Europe [abstract]      
Priority setting for health technology assessment in The Netherlands: principles and practice      
Priority setting for health technology assessment. Theoretical considerations and practical approaches. Priority setting Subgroup of the EUR-ASSESS Project      
Priority setting for health technology assessments: a systematic review of current practical approaches      
Priority setting for HTA in The Netherlands [abstract]      
Priority-setting for nursing research in the Republic of China.      
Priority setting in the provincial health services authority: survey of key decision makers.      
PRISMA in practice: keeping track of the literature search documentation. What are the problems? Oral presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
The PRISMA Statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration      
The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration      
The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration      
The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate healthcare interventions: explanation and elaboration      
PRISMAtic reporting of systematic reviews and meta-analyses      
Private acts and public objects: an investigation of citer motivations      
The private life of systematic reviews      
Probability as certainty: dichotomous thinking and the misuse of p values.      
The probability of cost-effectiveness      
Problem-based training for medical students reduces common prescription errors: a randomised controlled trial      
The problem formulation stage      
The problem of the type II statistical error      
The problem of therapeutic equivalence with paired qualitative data: an example from a clinical trial using haemophiliacs with an inhibitor to factor VIII      
Problematic phrases in the conclusions of published outcome studies: implications for evidence-based practice      
The problems and limitations of applying evidence-based medicine to primary surgical treatment of adult spinal deformity.      
Problems and prediction in survival-data analysis      
Problems and solutions on illustrating risks in the informed consent for multicenter phase III clinical trials [abstract]      
[Problems and strategies in clinical trials of traditional Chinese medicine]      
Problems and suggested solutions in creating an archive of clinical trials data to permit later meta-analysis: an example of methotrexate trials in rheumatoid arthritis      
Problems arising from the generalising of treatment efficacy from clinical trials in Alzheimer's disease: mistaking statistical significance as clinical significance      
Problems arising in the analysis of a series of similar experiments      
Problems encountered by clinical end users of MEDLINE and GRATEFUL MED      
Problems identified by secondary review of accepted manuscripts      
Problems in antiemetic trial design and interpretation      
Problems in comprehension of informed consent in rural and peri-urban Mali, West Africa.      
Problems in recruiting community-based physicians for health services research.      
Problems in scientific communication: a case study      
Problems in selecting the adequate patient population from existing data files for assessment studies of new diagnostic tests.      
Problems in the design and reporting of trials of antifungal agents encountered during meta-analysis      
Problems in the medical interpretation of overviews      
Problems in the reporting of acne clinical trials: a spot check from the 2009 Annual Evidence Update on Acne Vulgaris      
Problems in the use of large data sets to assess effectiveness      
Problems in using health survey questionnaires in older patients with physical disabilities. The reliability and validity of the SF-36 and the effect of cognitive impairment.      
Problems induced by meta-analyses      
Problems of accessing scholarly publications by Nigerian scientists: a study of the University of Ibadan.      
[Problems of evidence-based medicine in psychopharmacotherapy: problems of evidence grading and of the evidence basis for complex clinical decision making]      
[Problems of randomized studies in complementary medicine demonstrated in a study on mistletoe treatment of patients with breast cancer]      
Problems of spectrum and bias in evaluating the efficacy of diagnostic tests      
The problems of taste in placebo matching: an evaluation of zinc gluconate for the common cold      
Problems recruiting cancer patients to a comparative clinical trial of drug treatments for neuropathic pain in palliative care      
Problems with indexing and citation of articles with group authorship      
Problems with peer review and alternatives      
Problems with publishing results of interim analyses of randomized clinical trials.      
Problems with recruitment in a randomized controlled trial of counselling in general practice: causes and implications.      
Problems with retrieving original data: is it a selection bias? [abstract]      
Problems with up-front randomization in clinical trials.      
Problems with use of composite end points in cardiovascular trials: systematic review of randomised controlled trials.      
Procedures for comparing samples with multiple endpoints      
Procedures that assess inconsistency in meta-analyses can assess the likelihood of response bias in multiwave surveys.      
Proceedings of "Methodologic issues in overviews of randomized clinical trials"      
Process for identifyng research gaps [abstract]      
The process of research use in nursing.      
Processes in recruitment to randomised controlled trials of medicines for children (RECRUIT): a qualitative study      
Processing of data forms using handprint recognition of software: an accuracy analysis [abstract]      
Pro/con clinical debate: It is acceptable to stop large multicentre randomized controlled trials at interim analysis for futility. Con: the hazards of stopping for futility.      
Pro/con clinical debate: It is acceptable to stop large multicentre randomized controlled trials at interim analysis for futility. Pro: Futility stopping can speed up the development of effective treatments.      
Prodding tardy reviewers. A randomized comparison of telephone, fax, and e-mail      
[Production of scientific articles about health in six Latin American countries, 1973-1992 (published erratum appears in Rev Panam Salud Publica 1997 Mar;1(3):212)]      
Professional literature: one view of a national perspective.      
Proficiency of surgeons in inguinal hernia repair: effect of experience and age.      
Profile of a meeting: how abstracts are written and reviewed      
Profile of Journal of Dentistry for Children and Pediatric Dentistry journal articles by evidence typology: thirty-year time trends (1969-1998) and implications      
A profile of U.S.-based trials of behavioral and social interventions for HIV risk reduction. [Review] [59 refs]      
Prognosis after rectal cancer in blacks and whites participating in adjuvant therapy randomized trials.      
Prognosis and prognostic research: what, why, and how?      
Prognosis of idiopathic membranous nephropathy - a methodologic meta-analysis      
Prognostic and surrogate markers for outcome in the treatment of pulmonary tuberculosis [abstract]      
Prognostic factors of survival time after hematopoietic stem cell transplant in acute lymphoblastic leukemia patients: Cox proportional hazard versus accelerated failure time models.      
Prognostic markers in cancer: the evolution of evidence from single studies to meta-analysis, and beyond      
Prognostic models based on literature and individual patient data in logistic regression analysis      
A program to enhance clinical use of MEDLINE. A randomized controlled trial      
Progress in prevention of perinatal HIV-1.      
Progress in time to update of Cochrane Systematic Reviews. Poster presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
Progress of therapy in acute leukemia 1948-1981: randomized versus nonrandomized clinical trials      
Progress since OMERACT 6 on including patient perspective in rheumatoid arthritis outcome assessment      
Progress towards a 'one-stop-shop' for critically appraised methodological search filters: The InterTASC information specialists' sub-group search filters resource [abstract]      
The PROGRESS trial three years later: time for a balanced report of effectiveness      
The PROGRESS trial three years later: time for more action, less distraction. [erratum appears in BMJ. 2004 Nov 6;329(7474):1073]      
Progression-free survival and time to progression as primary end points in advanced breast cancer: often used, sometimes loosely defined      
Progression-free survival as a surrogate endpoint in advanced breast cancer      
Progressive reduction in treatment-related deaths in Medical Research Council childhood lymphoblastic leukaemia trials from 1980 to 1997 (UKALL VIII, X and XI).      
Project ImpACT: identification and selection of the most important RCTs ever done [abstract]      
A project to make evidence accessible to the consumers in China      
Projection from previous studies: a Bayesian and frequentist compromise [see comments]      
The proliferation of medical papers in several countries after discoveries in cardiology      
Prolonged recruitment efforts in health surveys: effects on response, costs, and potential bias.      
Prominent medical journals often provide insufficient information to assess the validity of studies with negative results      
The promise and problems of meta-analysis      
Promised contributions to charity and mail survey responses: replication with extension.      
A promising method for identifying cross-cultural differences in patient perspective: the use of Internet-based focus groups for content validation of new patient reported outcome assessments.      
Promoting access to Cochrane Collaboration outputs in developing countries: the possible role of post-graduate distance education [abstract]      
Promoting an egalitarian approach to research with vulnerable populations of women      
Promoting and evaluating access to the Cochrane Library [abstract]      
Promoting consumer involvement in research [abstract]      
Promoting development and use of systematic reviews in a developing country      
Promoting involvement in randomised clinical trials through the media: the 'get randomised' campaign [abstract]      
Promoting partnerships: challenges for the internet age.      
Promoting public awareness of randomised clinical trials using the media: the 'Get Randomised' campaign      
Promoting research into peer review. Referees should provide references [letter; comment]      
Promoting the use of systematic reviews in practice: evidence-based implementation of computerised medical guidelines [abstract]      
Promotion of evidence-based practice by professional nursing associations: literature review. [Review]      
Promotion of health information access via Grateful Med and Loansome Doc: why isn't it working?      
Proof in observational medicine      
The proof of the pudding: an illustration of the relative strengths of null hypothesis, meta-analysis, and Bayesian analysis      
Properties of the Picker Patient Experience questionnaire in a randomized controlled trial of long versus short form survey instruments      
Prophylactic intrapartum amnioinfusion for patients with oligohydramnios. A prospective randomized study.      
Prophylactic removal of impacted third molars: an assessment of published reviews.      
Propofol and bradycardia: causation, frequency and severity.      
[Proportion of reports published after their presentation in meetings of Farmacia Hospitalaria]. [Spanish]      
Proportion of subjects with an ethically acceptable reason for enrolling in a phase 1 trial [abstract]      
Proportion of treatment effect (PTE) explained by a surrogate marker.      
Proportional hazards models with random effects to examine centre effects in multicentre cancer clinical trials.      
Proportional odds ratio model for comparison of diagnostic tests in meta-analysis      
A proposal for a new editorial policy in the social sciences.      
A proposal for improving the quality of published educational research      
A proposal for more informative abstracts of clinical articles.      
A proposal for more informative abstracts of review articles      
A proposal for structured reporting of randomized controlled trials. The Standards of Reporting Trials Group      
Proposal review scores as predictors of project performance [abstract]      
A proposal to calculate publication equivalents      
Proposal to outlaw the term 'negative trial'.      
A proposed approach to identifying outcomes of HTA activities [abstract]      
A proposed consent process in studies that use an exception to informed consent.      
Proposed methods for reviewing the outcomes of health research: the impact of funding by the UK's 'Arthritis Research Campaign'      
Proposed new score to rate the strength of evidence and its application to large-scale clinical trials of angiotensin-receptor blockers.      
A proposed patient-centred measure of the likelihood of being helped and harmed by a treatment [abstract]      
A proposed protocol for the development of a register of trials of weight management of childhood overweight and obesity.      
Proposing phase I studies: patients', relatives', nurses' and specialists' perceptions.      
The prospect of data-based medicine in the light of ECPC      
Prospective clinical trials of biotherapies in solid tumors: a 5-year survey.      
Prospective comparative clinical trials in The Journal of Hand Surgery (American).      
Prospective comparative study of bone marrow transplantation and postremission chemotherapy for childhood acute myelogenous leukemia. The Associazione Italiana Ematologia ed Oncologia Pediatrica Cooperative Group.      
Prospective evaluation of cancer clinical trial accrual patterns: identifying potential barriers to enrollment.      
Prospective evaluation of two recruitment strategies for a randomized controlled cancer prevention trial      
A prospective global measure, the Punum Ladder, provides more valid assessments of quality of life than a retrospective transition measure      
Prospective meta-analysis: ahoy! A clinical trial?      
Prospective meta-analysis of cholesterol-lowering studies: the Prospective Pravastatin Pooling (PPP) Project and the Cholesterol Treatment Trialists (CTT) Collaboration      
Prospective meta-analysis using individual patient data vs meta-analysis of published reports: the case of ACE-inhibitors in myocardial infarction. ACE-Inhibitor Collaborative Group. [abstract]      
Prospective preference assessment: a method to enhance the ethics and efficiency of randomized controlled trials.      
Prospective, randomized, open-label, blinded-endpoint (PROBE) designed trials yield the same results as double-blind, placebo-controlled trials with respect to ABPM measurements.      
Prospective studies in patients with intraventricular haemorrhage without the capacity to give consent in Germany - a legal dilemma.      
Prospective Trial Registration: Cochrane Renal Group experience [abstract]      
Prospective validation of text categorization filters for identifying high-quality, content-specific articles in MEDLINE      
Prospectively identified trials could be used for comparison with meta-analyses      
A prospectively planned cumulative meta-analysis applied to a series of concurrent clinical trials      
Prospectively screening for eligible patients was inaccurate in predicting patient recruitment of orthopedic randomized trials      
Prospects for knowledge exchange in health policy and management: institutional and epistemic boundaries      
PROSPERO: An international prospective register of systematic review protocols. Oral presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
The prostate cancer prevention trial: the association of study site and participant adherence interventions to the study site end-of-study biopsy rates [abstract]      
Protocol allocation and exclusion in two Danish randomised trials in ovarian cancer.      
Protocol for a prospective collaborative overview of all current and planned randomized trials of cholesterol treatment regimens. Cholesterol Treatment Trialists' (CTT) Collaboration      
Protocol for prospective collaborative overviews of major randomized trials of blood-pressure-lowering treatments. World Health Organization - International Society of Hypertension Blood Pressure Lowering Treatment Trialists' Collaboration      
Protocol for the Quick Clinical study: a randomised controlled trial to assess the impact of an online evidence retrieval system on decision-making in general practice.      
Protocol of the COSMIN study: COnsensus-based Standards for the selection of health Measurement INstruments.      
Protocols for pressure ulcer prevention: are they evidence-based?      
Protocure: supporting the development of medical protocols through formal methods.      
A prototype for integrative review and meta-analysis of nursing research.      
Provider and center effect in multicenter randomized controlled trials of surgical specialties: an analysis on patient-level data      
Provider attitudes regarding participation of women and persons of color in AIDS clinical trials      
Provider roles in the recruitment of underrepresented populations to cancer clinical trials.      
Providing health information to the general public: a survey of current practices in academic health sciences libraries      
Providing health information to women. The role of magazines      
Providing health information to women: the role of magazines [abstract]      
Providing internet lessons to oncology patients and family members: a shared project.      
Provision of information on regulatory authorities' websites      
Provision of pen along with questionnaire does not increase the response rate to a postal survey: a randomised controlled trial.      
A provisional model for when to update systematic reviews [abstract]      
Proxy informed consent in pediatric research: a review      
Proxy reports of physical activity were valid in older people with and without cognitive impairment      
Pseudo cluster randomization: a treatment allocation method to minimize contamination and selection bias.      
Pseudo cluster randomization performed well when used in practice      
PsiTri - a survey of the state of the mental health trials      
Psychiatric outpatients report their experiences as participants in a randomized clinical trial.      
Psychiatric research: what ethical concerns do LRECs encounter? A postal survey. Local research ethics committees      
[Psychoactive drug advertising: analysis of scientific information]      
Psychological abstracts and German-language psychology      
Psychological and clinical factors implicated in decision making about a trial of low-dose tamoxifen in hormone replacement therapy users.      
Psychological approach to indexing: effects of the operator's expertise upon indexing behaviour      
Psychological effects of participation and nonparticipation in a placebo-controlled zidovudine clinical trial with asymptomatic human immunodeficiency virus-infected individuals.      
Psychological tests used in research with adolescents, 1969-1973.      
Psychological treatment of depression: a meta-analytic database of randomized studies      
Psychological treatments for irritable bowel syndrome: a critique of controlled treatment trials      
Psychologists' research activities and professional information-seeking behaviour: empirical analyses with reference to the theory of the intellectual and social organization of the sciences      
Psychometric and cross-national evaluation of a Portuguese version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire.      
A psychometric experiment in causal inference to estimate evidential weights used by epidemiologists.      
Psychometric properties of the Arabic version of Quality of Life Index.      
Psychometric testing of SPIDER: data capture tool for systematic literature reviews      
Psychosocial adjustment of familial polyposis patients and participation in a chemoprevention trial.      
Psychosocial aspects of participation in early anticancer drug trials. Report of a pilot study.      
Psychosocial barriers to clinical trial participation as perceived by oncologists and patients [abstract]      
Psychosocial interventions in the rehabilitation of people with spinal cord injury: a comprehensive methodological inquiry      
Psychotherapy and pharmacotherapy randomized controlled trials are equally likely to report a positive outcome      
Psychotherapy in controlled psychopharmacology trials. Does it matter if we ignore it?      
Psychotherapy outcome research: an application of a new method for evaluating research methodology      
PsycINFO search strategies identified methodologically sound therapy studies and review articles for use by clinicians and researchers.      
Public attitudes regarding willingness to participate in medical research studies.      
Public attitudes toward participation in cancer clinical trials.      
A public database of clinical trials results: progress and issues [abstract]      
Public disclosure of clinical trials in children.      
Public Health and HTA: to what extent did Public Health feature at the HTAi conference in 2005 and 2006? [abstract]      
Public health citation patterns: an analysis of the American Journal of Public Health, 2003-2005      
Public health decision-makers' informational needs and preferences for receiving research evidence.      
Public health nursing research priorities: a collaborative Delphi study.      
Public health practitioners' information access and use patterns in the Maryland (USA) public health departments of Anne Arundel and Wicomico Counties      
Public involvement in health care priority setting: an overview of methods of eliciting values      
Public involvement in the design and conduct of clinical trials: a narrative review of case examples [abstract]      
'The public is too subjective': public involvement at different levels of health-care decision making.      
Public response to cost-quality tradeoffs in clinical decisions      
Public willingness to participate in and public opinions about genetic variation research: a review of the literature      
Publication: an ethical imperative      
Publication and non-publication of clinical trials: longitudinal study of applications submitted to a research ethics committee.      
Publication and related bias in meta-analysis: power of statistical tests and prevalence in the literature      
Publication and related biases      
Publication and reporting of phase I clinical trials [abstract]      
Publication bias      
Publication Bias      
Publication bias      
Publication bias: a problem in interpreting medical data      
Publication bias - a reason for the decreased research output in developing countries.      
Publication bias affected the estimate of postoperative nausea in an acupoint stimulation systematic review.      
Publication bias against null results      
Publication bias and clinical trials      
Publication bias and diagnostic research: full publication of results initially presented in abstracts [abstract]      
Publication bias and dissemination of clinical research      
Publication bias and heterogeneity in systematic reviews of newer pharmacotherapies for the treatment of depression [abstract]      
Publication bias and heterogeneity in the relationship between systolic blood pressure, birth weight, and catch-up growth--a meta analysis.      
Publication bias and meta-analyses: a practical example      
Publication bias and meta-analysis      
Publication bias and meta-analysis: a practical example [abstract]      
Publication bias and passive smoke research: interviews with investigators [abstract]      
Publication bias and public health policy on environmental tobacco smoke      
Publication bias and research on passive smoking: comparison of published and unpublished studies      
Publication bias and the evaluation of psychotherapy efficacy in reviews of the research literature      
Publication bias and the human albumin review [abstract]      
Publication bias and the integrity of psychiatry research [editorial]      
Publication bias: are meta-analyses reliable?      
Publication bias, chance, and heterogeneity: how researchers interpret the funnel plot [abstract]      
Publication bias: direction of outcome less important than scientific quality      
Publication bias: evidence of delayed publication in a cohort study of clinical research projects      
Publication bias for CAM trials in the highest impact factor medicine journals is partly due to geographical bias.      
Publication bias in abstracts presented to the annual meeting of the American Academy of Orthopaedic Surgeons.      
Publication bias in clinical research      
Publication bias in clinical trials due to statistical significance or direction of trial results      
Publication bias in ecology and evolution: an empirical assessment using the 'trim and fill' method. [Review]      
Publication bias in editorial decision making      
Publication bias in eye trials [abstract]      
Publication bias in gastroenterological research - a retrospective cohort study based on abstracts submitted to a scientific meeting      
Publication bias in medical informatics evaluation research: is it an issue or not?      
Publication bias in meta-analysis: a Bayesian data-augmentation approach to account for issues exemplified in the passive smoking debate      
Publication bias in meta-analysis: a Bayesian data-augmentation approach to account for issues exemplified in the passive smoking debate      
Publication bias in meta-analysis: its causes and consequences      
Publication bias in meta-analysis: its causes and consequences      
Publication bias in neurosurgery: lessons from series of unruptured aneurysms      
Publication bias in obesity treatment trials      
Publication bias in oral and maxillofacial surgery journals: an observation on published controlled trials      
Publication bias in papers presented to the Australian Orthopaedic Association Annual Scientific Meeting.      
Publication bias in qualitative research: what becomes of qualitative research presented at conferences?      
Publication bias in reproductive research      
Publication bias in research synthesis: sensitivity analysis using a priori weight functions      
Publication bias in situ.      
Publication bias in situ [abstract]      
Publication bias in statistical overview of trials: example of psychological rehabilitation following myocardial infarction [abstract]      
Publication bias in studies of ambient particulate pollution and daily mortality [abstract]      
Publication bias in studies of diagnostic accuracy in the stroke literature. What is the evidence? [abstract]      
Publication bias in studies of PM10 and children's lung function [abstract]      
Publication bias in the environmental tobacco smoke/coronary heart disease epidemiologic literature      
Publication bias in the pulmonary/allergy literature: effect of pharmaceutical company sponsorship.      
Publication bias in two Spanish medical journals [abstract]      
Publication bias is a scientific problem with adverse ethical outcomes: the case for a section for null results.      
Publication bias is a serious threat to the validity of Cochrane Reviews [abstract]      
Publication bias: is it also present in the secondary literature? [abstract]      
Publication bias: its implications for clinical pharmacology      
Publication bias of randomized controlled trials in emergency medicine.      
Publication bias: the case for an international registry of clinical trials      
Publication bias: the problem that won't go away      
Publication bias. The triumph of hope over experience      
Publication bias was not a good reason to discourage trials with low power      
Publication & citation patterns in the literature of a high metabolism area: the case of superconductivity in 1970      
Publication decisions and their possible effects on inferences drawn from tests of significance or vice versa      
Publication decisions revisted: The effect of the outcome of statistical tests on the decision to publish and vice versa      
Publication guidelines for quality improvement studies in health care: evolution of the SQUIRE project      
[The publication in biomedical journals of clinical trial protocols: a new way to improve research quality (editorial)]      
Publication in foreign journals and promotion of academics in Nigeria.      
Publication lag in cost-utility analyses conducted alongside clinical trials [abstract]      
Publication languages of impact factor journals and of medical bibliographic databanks      
[Publication languages of Impact Factor journals and of medical bibliographic databanks]. [German]      
Publication of abstracts presented at anaesthesia meetings      
Publication of abstracts presented at diabetes meetings.      
Publication of abstracts submitted to the annual meeting of the Pediatric Orthopaedic Society of North America.      
Publication of clinical trials supporting approved new drug applications in the United States [abstract]      
Publication of clinical trials supporting successful new drug applications: a literature analysis.      
Publication of Cochrane reviews in journals: no reason to delay publishing in The Cochrane Library, but don't forget to cite previously published versions      
Publication of economic evaluations alongside clinical trials: preliminary evidence of bias. Oral presentation at the 16th Cochrane Colloquium: Evidence in the era of globalisation; 2008 Oct 3-7; Freiburg, Germany [abstract]      
Publication of IPD meta-analyses in The Cochrane Database of Systematic Reviews: potential barriers and opportunities. Poster presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
Publication of methods in focus group research: are there quality standards for qualitative research? [abstract]      
Publication of negative studies      
Publication of patient-related oncology nursing research      
Publication of presented abstracts at annual scientific meetings: a measure of quality?      
Publication of randomized clinical trials in vision research submitted as abstracts to National Ophthalmology meetings [abstract]      
Publication of research presented at the pediatric meetings. Change in selection      
Publication of research reports after rejection by the New England Journal of Medicine in two time periods [abstract]      
Publication of responses to a Cochrane systematic review on mass media interventions for HIV testing [abstract]      
The publication of sponsored symposiums in medical journals [see comments]      
Publication or presentation of results from multicenter clinical trials: evidence from an academic medical center.      
The publication outcome for the papers presented at the 1990 ABA conference      
[Publication outcome of research funding by the Danish Heart Foundation 1988-1990]      
Publication outcomes of phase II oncology clinical trials      
Publication pattern of medical theses, France, 1993-98      
Publication pattern of papers presented at the American Society for Surgery of the Hand annual meeting      
Publication patterns of papers presented at the Annual Meeting of The American Academy of Orthopaedic Surgeons      
Publication patterns of presentations at the Society of Teachers of Family Medicine and North American Primary Care Research Group annual meetings      
Publication patterns of the American Society of Pediatric Neurosurgeons. Is there support among members for peer-reviewed pediatric neurosurgical journals?      
Publication practices and the file drawer problem: A survey of published authors      
Publication practices in NIH-sponsored multicenter clinical trials [abstract]      
Publication prejudices: an experimental study of confirmatory bias in the peer review system      
Publication probability of a study on odds ratio value circumstantial evidence for publication bias in medical study areas      
[Publication rate for oral presentations made at the Journees Dermatologiques de Paris meeting]      
The publication rate of abstracts from the 4th Park City Pediatric Rheumatology meeting in peer-reviewed journals: what factors influenced publication?      
Publication rate of abstracts of papers and posters presented at Medical Library Association annual meetings      
Publication rate of abstracts presented at the annual meeting of the American Urological Association.      
Publication rate of abstracts presented at the annual meeting of the Orthopaedic Research Society      
Publication rate of abstracts presented at the Congress of the German Sports Medicine Association in 1997      
Publication rate of abstracts presented at The Society of Hospital Pharmacists of Australia 24th Federal Conference.      
[Publication rate of Deutsche Forschungsgemeinschaft (DFG)-supported research projects. An analysis of the "fate" of DFG-support methods in anesthesia, surgery and internal medicine]. [German]      
[Publication rate of original papers orally presented at the Journees Francaises de Radiologie 1996]. [French]      
Publication rate of radiodiagnostics in Spain: bibliometric analysis based on publications in the journal Radiologia from 1984 to 1993.      
Publication rate of trauma abstracts presented at an International Orthopaedic conference      
Publication rates following pancreas meetings.      
Publication rates for abstracts presented at the British Association of Plastic Surgeons meetings: how do we compare with other specialties?      
Publication rates for presentations at British Orthopaedic Association meetings from 1980-1984 and 1990-1994      
Publication rates for presentations at British Orthopaedic Assoiation meetings from 1980 to 1984 and 1990 to 1994      
Publication rates for the scientific sessions of the OTA. Orthopaedic Trauma Association.      
Publication rates in U.S. schools and colleges of pharmacy, 1976-1992.      
Publication rates of abstracts from two pharmacy meetings.      
Publication rates of abstracts presented at annual musculoskeletal tumor society meetings.      
Publication rates of abstracts presented at annual scientific meetings: how does the Royal Australian and New Zealand College of Radiologists compare?      
Publication rates of abstracts presented at the 1993 annual Academy meeting.      
The publication rates of presentations at major Spine Specialty Society meetings (NASS, SRS, ISSLS)      
Publication rates of research originally presented in abstract form in three subspecialities of internal medicine.      
Publication rates of scientific papers presented at the Otorhinolarygological Research Society meetings.      
Publication related biases in health technology assessment [abstract]      
[Publication standards for clinical research sponsored by the pharmaceutical industry]. [Spanish]      
Publication trends in individual anxiety disorders: 1980-2015      
Publication trends in the drug dependence literature      
Publication trends of vegetarian nutrition articles in biomedical literature, 1966-1995      
PublicationHarvester: an open-source software tool for science policy research      
Publications by family physicians in non-family medicine journals      
[Publications derived from free communications at the XX Congress of the Anesthesiology and Resuscitation Spanish Association (Anesthesia 92)]. [Spanish]      
[Publications from Austrian pediatric institutions--summary and analysis 1989 to 1991]      
Publications from multicentre clinical trials: statistical techniques and accessibility to the reader      
Publications from Turkey in European and American neurosurgical journals - a review of the facts.      
Publications in anaesthesiological journals: quality and clinical relevance [abstract]      
Publications in anesthesia journals: quality and clinical relevance      
Publications in subspecialty journals on end-of-life ethics.      
Publications in vascular journals: contribution by country      
[Publications of dissertations on unconventional medical therapy and diagnosis procedures - a contribution to "publication bias"]      
[Publications of French dermatology professors from 1996 to 1998]. [French]      
Publications on clinical trials with X-ray contrast media: differences in quality between journals and decades      
Publications on diagnostic test evaluation in family medicine journals: an optimal search strategy      
Publications on paediatric anaesthesia: a quantitative analysis of publication activity and international recognition      
Publications resulting from anesthesia meeting abstracts      
Publicity does not increase recruitment to falls prevention trials: the results of two quasi-randomized trials      
Publicly funded randomised trials: how many prove a difference? [abstract]      
Publish in English, a sine qua non.      
Publish or be damned? The fate of abstracts presented at the International Continence Society Meeting 2003      
Published criteria for evaluating health related web sites: review.      
Published data alone for meta-analysis may be sufficient: the experience of the EU Hernia Trialists Collaboration [abstract]      
Published or perished: what becomes of papers presented at oncology nursing society congresses?      
Published peer review policies: determining journal peer review status from a non-expert perspective [abstract]      
Published randomized controlled trials of drug therapy for dementia often lack complete data on harm      
Published reports of acupuncture trials showed important limitations.      
Published research on attention deficit hyperactivity disorder: a comparative analysis of MEDLINE and an Iranian bibliographic database      
Publishing clinical trial results: the future beckons.      
Publishing in the parish      
Publishing overviews in the Cochrane Library [abstract]      
Publishing protocols of systematic reviews. Comparing what was done to what was planned      
Publishing research from developing countries.      
Publishing trends in otorhinolaryngology from January 1997 to December 1999 in the UK      
PubMed growth patterns and visibility of journals of Sub-Saharan African origin      
PubMed had a higher sensitivity than Ovid-MEDLINE in the search for systematic reviews      
Putting computer-based evidence in the hands of clinicians      
Putting computer-based evidence in the hands of clinicians [letter; comment]      
Putting public health evidence into practice: increasing the prevalence of working smoke alarms in disadvantaged inner city housing.      
Putting theory into practice: a cluster randomized trial with a small number of clusters      
Putting trials on trial--the costs and consequences of small trials in depression: a systematic review of methodology      
Putting trials on trial--the costs and consequences of small trials in depression: a systematic review of methodology.