RT Journal Article SR Electronic T1 Collagenous colitis and coeliac disease. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 364 OP 364 DO 10.1136/gut.28.3.364 VO 28 IS 3 A1 E G Breen A1 C Farren A1 C E Connolly A1 C F McCarthy YR 1987 UL http://gut.bmj.com/content/28/3/364.1.abstract AB