RT Journal Article SR Electronic T1 Digestive and Hepatobiliary Pathology and Pathophysiology Case Studies JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 770 OP 770 DO 10.1136/gut.18.9.770-b VO 18 IS 9 YR 1977 UL http://gut.bmj.com/content/18/9/770.3.abstract AB