AIM:To evaluate the association between the tumour necrosis factor alpha-308(TNF-a-308)gene polymorphism and the risk of digestive system cancers.METHODS:All el
AIM:To perform a meta-analysis of large-balloon dilation(LBD)plus endoscopic sphincterotomy(EST)vs EST alone for removal of bile duct stones.METHODS:Databases i
AIM:To investigate the epidemiology and characteristics of Barrett’s esophagus(BE)in China and compare with cases in the west.METHODS:Studies were retrieved fr