RT Journal Article SR Electronic T1 Serum and tissue autoantibodies to colonic epithelium in ulcerative colitis. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1569 OP 1569 DO 10.1136/gut.32.12.1569 VO 32 IS 12 A1 Das, K M YR 1991 UL http://gut.bmj.com/content/32/12/1569.1.abstract AB