The Japanese guidelines for gastric cancer screening (Structured abstract)      
Jet lag (Provisional abstract)      
Jiaji points combined with surrounding needling for the treatment of postherpetic neuralgia: a meta-analysis (Provisional abstract)      
Joint effect of polymorphism in the N-acetyltransferase 2 gene and smoking on hepatocellular carcinoma (Provisional abstract)      
Just take a deep breath: a review to compare the effects of spontaneous versus directed Valsalva pushing in the second stage of labour on maternal and fetal wellbeing (Provisional abstract)      
Juvenile idiopathic arthritis of the axial joints: a systematic review of the diagnostic accuracy and predictive value of conventional MRI (Provisional abstract)      
Juxtarenal aortic aneurysm repair (Provisional abstract)