The vagaries of peer review: a new study and our experience. "At a certain level, we all are more or less held hostage to the peer-review system"[editorial; comment]      
Valid inference in random effects meta-analysis      
A validated search assessment tool: assessing practice-based learning and improvement in a residency program      
Validating clinical guidelines: the development of a European appraisal instrument (EUCAIG) [abstract]      
Validating criteria for identifying quality systematic review websites [abstract]      
Validating diagnostic tests, correct and incorrect methods, new developments      
Validating literature-based models with direct clinical trial results: the cost-effectiveness of secondary prophylaxis for PCP in AIDS patients      
Validation of a guideline-based composite outcome assessment tool for asthma control.      
Validation of a home safety questionnaire used in a randomised controlled trial.      
Validation of a MEDLINE search instrument: assessing practice-based learning improvement in residency programs [abstract]      
Validation of a meta-analysis: the effects of fish oil in rheumatoid arthritis      
Validation of a methodological index (MINORS) for non-randomized studies. [French]      
Validation of a model predicting enrollment status in a chemoprevention trial for breast cancer.      
Validation of a PubMed search filter for identifying studies including children. Poster presentation at the Joint Cochrane and Campbell Colloquium; 2010 Oct 18-22; Keystone, Colorado, USA [abstract]      
Validation of a questionnaire to evaluate the quality of life of nonprofessional caregivers of dependent persons.      
Validation of a water consumption questionnaire for a study of adverse health outcomes associated with exposure to disinfection by-products [abstract]      
Validation of a water consumption questionnaire for a study of the adverse health outcomes associated with disinfection by-products      
Validation of adolescent diet recalled by adults.      
Validation of an Arabic translation of the Zung Self-Rating Depression Scale.      
Validation of an automated safety surveillance system with prospective, randomized trial data      
Validation of an index of the quality of review articles      
Validation of intermediate end points in cancer research      
Validation of self-reported fall events in intervention studies.      
Validation of the Mexican Spanish version of the EORTC C30 and STO22 questionnaires for the evaluation of health-related quality of life in patients with gastric cancer      
Validation of the Subjective Numeracy Scale: effects of low numeracy on comprehension of risk communications and utility elicitations      
Validation of the summary ROC for diagnostic test meta-analysis: a Monte Carlo simulation      
Validation of two quality of life questionnaires suitable for intensive care patients      
Validation-study conclusions from dietary reports by fourth-grade children observed eating school meals are generalisable to dietary reports by comparable children not observed.      
A validation study of the domains of the core EORTC quality of life questionnaire.      
The validity and ethics of giving placebo in a randomized nonpharmacologic trial was evaluated.      
Validity and reliability of maternal recall of prescription drug use during pregnancy [abstract]      
Validity and reliability of the Bangla version of WHOQOL-BREF on an adolescent population in Bangladesh.      
The validity and reliability of the Turkish version of the Rheumatoid and Arthritis Outcome Score (RAOS) in patients with rheumatoid arthritis      
Validity and responsiveness of the EuroQol as a measure of health-related quality of life in people enrolled in an AIDS clinical trial.      
The validity and responsiveness of three quality of life measures in the assessment of psoriasis patients: results of a phase II study.      
Validity generalization and situational specificity: a second look at the 75% rule and Fischer's z Transformation      
Validity generalization procedures using sample-based estimates: a comparison of six procedures      
Validity generalization: Rejoinder to Schmidt, Hunter, and Raju (1988)      
Validity of 24-hour dietary recall interviews conducted among volunteers in an adult working community      
Validity of adolescent diet recall 48 years later      
Validity of anecdotal reports of suspected adverse drug reactions: the problem of false alarms.      
Validity of average, minimum, and maximum end-of-day recall assessments of pain and fatigue      
The validity of case-control studies with nonrandom selection of controls      
The validity of claims made in orthopaedic print advertisements      
Validity of clinical body weight measures as substitutes for missing data in a randomized trial      
Validity of clinical trials of antidepressants.      
Validity of death certificates for injury-related causes of death      
Validity of diabetes self-reports in the Women's Health Initiative: comparison with medication inventories and fasting glucose measurements      
Validity of indirect comparison for estimating efficacy of competing interventions: empirical evidence from published meta-analyses.      
The validity of informed consent in a clinical study.      
Validity of meta-analyses on thromboprophylaxis with low molecular weight heparin (LMWH)/low dose heparin (LDH) [abstract]      
Validity of original studies in health technology assessment reports: significance of standardized assessment and reporting.      
Validity of overall self-rated health as an outcome measure in small samples: a pilot study involving a case series      
The validity of person tradeoff measurements: randomized trial of computer elicitation versus face-to-face interview      
Validity of randomized clinical trials in gastroenterology from 1964-2000      
Validity of recall of tobacco use in two prospective cohorts      
Validity of self-report of infections in a longitudinal cohort of patients with rheumatoid arthritis differs by source of report and infection severity      
Validity of self-reported history of cancer in a cancer screening cohort [abstract]      
Validity of self-reported mammography use among women with familial history of breast cancer [abstract]      
Validity of self-reported menstrual cycle length      
Validity of self-reported pregravid weight      
Validity of self-reported smoking status among participants in a lung cancer screening trial.      
Validity of the agency for healthcare research and quality clinical practice guidelines. How quickly do guidelines become outdated?      
Validity of the AusTOM scales: a comparison of the AusTOMs and EuroQol-5D      
Validity of the impact factor of journals as a measure of randomized controlled trial quality.      
Validity of the short mood and feelings questionnaire and brief depression screens in a community sample of young adolescents [abstract]      
The valuable contribution of observational studies to nephrology.      
[Value and limits of conventional or cumulative meta analysis in obstetrics and gynecology].      
Value judgments in the analysis and synthesis of evidence.      
Value of a run-in period in a drug trial during pregnancy.      
The value of an evidence database for occupational therapists: an international online survey.      
[Value of clinical research in Germany in an international comparison]      
The value of Cochrane reviews in the clinical practice of university-based surgeons in a developing country [abstract]      
Value of epidemiologic studies in determining the true incidence of adverse events. The nonsteroidal anti-inflammatory drug story      
Value of flow diagrams in reports of randomized controlled trials.      
Value of information literature analysis: a review of applications in health risk management      
The value of literature searching beyond Medline and Embase for systematic reviews of interventions and epidemiology in diabetes [abstract]      
The value of participating in an asthma trial.      
The value of randomization and control in clinical trials      
The value of RCT evidence depends on the quality of statistical analysis.      
Value of recruiting at international sites: the BARI 2D experience [abstract]      
Value of recruitment strategies used in a primary care practice-based trial.      
The value of structured abstracts in information retrieval from MEDLINE.      
The value of systematic reviews as research activities in medical education.      
The value of systematic reviews in the efficiency guidance of office based physicians in Germany [abstract]      
Value of updating a systematic review in surgery using individual patient data      
The value of using verbs in Medline searches.      
Valuing health: use and abuse of utilities within NICE technology appraisals [abstract]      
Valuing the outcomes of treatment: do patients and their caregivers agree?      
Vanishing act: the disappearance of web resources cited in the health care management literature [abstract]      
Variability and sample size requirements of quality-of-life measures: a randomized study of three major questionnaires.      
Variability in measuring (instrumental) activities of daily living functioning and functional decline in hospitalized older medical patients: a systematic review      
Variability in meta-analytic results concerning the value of cholesterol reduction in coronary heart disease: a meta-meta-analysis      
Variability in the assessment of fracture-healing in orthopaedic trauma studies      
Variability of outcome measures among trials of topical Chinese herbal medicines for musculoskeletal injuries. Poster presentation at the 19th Cochrane Colloquium; 2011 Oct 19-22; Madrid, Spain [abstract]      
Variability of standards for reporting tumor-graft data in preclinical cancer therapeutic studies [abstract]      
Variability of the date of HIV diagnosis: a comparison of self-report, medical record, and HIV/AIDS surveillance data      
Variables affecting information technology end-user satisfaction: a meta-analysis of the empirical literature      
Variance imputation for overviews of clinical trials with continuous response      
Variation among experienced reviewers in the interpretation of the evidence from randomized controlled trials (RCTs) [abstract]      
Variation among experienced reviewers in the interpretation of the evidence from RCTs [abstract]      
Variation in baseline risk as an explanation of heterogeneity in meta-analysis      
Variation in baseline risk as an explanation of heterogeneity in meta-analysis by S. D. Walter, Statistics in Medicine, 16, 2883-2900 (1997) [letter; comment]      
Variation in journal peer review systems. Possible causes and consequences      
Variation in results from randomized, controlled trials: stochastic or systematic?      
Variation in the placebo effect in randomised controlled trials of analgesics: all is as blind as it seems      
Variations between trials of the effect of chemotherapy: an exploratory analysis of the meta-analysis of chemotherapy in head and neck carcinoma [abstract]      
Variations in activation time and according to trial type: the National Cancer Institute of Canada Clinical Trials Group experience [abstract]      
Variations in breast cancer treatment decisions and their impact in mounting trials.      
Variations in Medical Subject Headings (MeSH) mapping: from the natural language of patron terms to the controlled vocabulary of mapped lists      
Variations in MeSH mapping [abstract]      
Variations in patients' adherence to medical recommendations: a quantitative review of 50 years of research.      
Variations in self-rated health among patients with HIV infection.      
Variations in use of meta tag keywords by web pages in different languages.      
Varicose veins on the internet      
Varied acceptance of clinical trial results      
Varied search protocols lead to clinically relevant results.      
Various randomized designs can be used to evaluate medical tests      
Vascular neurosurgery following the International Subarachnoid Aneurysm Trial: modern practice reflected by subspecialization      
The vascular nursing research priorities survey: an update.      
Vascular surgery and the Internet: a poor source of patient-oriented information      
Vasectomy and prostate cancer risk: methodological review of the evidence      
Ventilation of patients with acute lung injury and acute respiratory distress syndrome: has new evidence changed clinical practice?      
Ventilation strategies and outcome in randomised trials of high frequency ventilation.      
[Verbal information in clinical trials at an oncology department]      
Verifying keyed medical research data      
Video productions in SELECT: effective tools for staff learning and participant motivation in clinical trials [abstract]      
The views of Alzheimer disease patients and their study partners on proxy consent for clinical trial enrollment.      
Views of American oncologists about the purposes of clinical trials      
The views of nurses to the conduct of a randomised controlled trial of problem drinkers in an accident and emergency department.      
Views of people with schizophrenia regarding aspects of research: study size and funding sources.      
Violation of the intent-to-treat principle and rate of missing data in superiority trials assessing structural outcomes in rheumatic diseases.      
Virtual reality and brain anatomy: a randomised trial of e-learning instructional designs      
Visibility and impact of INAHTA publications [abstract]      
Visibility of articles from Croatia in the Biological Abstracts Database.      
Vision for a global registry of anticipated public health studies      
Vision-specific instruments for the assessment of health-related quality of life and visual functioning: a literature review. [Review]      
Visit-driven endpoints in randomized HIV/AIDS clinical trials: impact of missing data on treatment difference measured on summary statistics      
Visitor-determined website improvement: combining survey and log results on Cochrane.org [abstract]      
Visual acuity outcomes among sham vs no-treatment controls from randomized trials      
Visual search strategies and eye movements when searching Chinese character screens      
Visualizing changes over time: a history of information retrieval through the lens of descriptor tri-occurrence mapping      
Vitamin C supplementation and common cold symptoms: problems with inaccurate reviews.      
Vitamin C, the placebo effect, and the common cold: a case study of how preconceptions influence the analysis of results      
Viva bien!: Overcoming recruitment challenges in a multiple-risk-factor diabetes trial      
Voices from practice: mental health nurses identify research priorities.      
Voluntary participation and informed consent to international genetic research.      
Volunteer bias in medical education research: an empirical study of over three decades of longitudinal data      
Volunteer bias in nonrandomized evaluations of the efficacy of needle-exchange programs.      
Volunteer human subjects' understandings of their participation in a biomedical research experiment.      
Volunteers or victims: patients' views of randomised cancer clinical trials [see comments]