RT Journal Article SR Electronic T1 Pancreatic Society of Great Britain and Ireland JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP A367 OP A372 DO 10.1136/gut.28.3.A367 VO 28 IS 3 YR 1987 UL http://gut.bmj.com/content/28/3/A367.abstract AB