RT Journal Article SR Electronic T1 Secondary prevention of gastric cancer JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1646 OP 1647 DO 10.1136/gut.2007.133926 VO 56 IS 12 YR 2007 UL http://gut.bmj.com/content/56/12/1646.abstract AB