RT Journal Article SR Electronic T1 Does Helicobacter pylori eradication really reduce the risk of gastric cancer at the population level? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 950 OP 950 DO 10.1136/gutjnl-2012-303472 VO 62 IS 6 A1 Zhu Wang A1 Yang Yu A1 Wenjuan Yang A1 Bin Chen A1 Xiao Li YR 2013 UL http://gut.bmj.com/content/62/6/950.1.abstract AB