RT Journal Article SR Electronic T1 BIMR gastroenterology: vol 2 Small intestine JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 685 OP 685 DO 10.1136/gut.24.7.685-a VO 24 IS 7 A1 M S Losowsky YR 1983 UL http://gut.bmj.com/content/24/7/685.2.abstract AB