RT Journal Article SR Electronic T1 Controversies in gastroenterology JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 759 OP 760 DO 10.1136/gut.26.7.759-a VO 26 IS 7 A1 Read, A E YR 1985 UL http://gut.bmj.com/content/26/7/759.2.abstract AB