RT Journal Article SR Electronic T1 Course and prognosis of ulcerative colitis JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1 OP 15 DO 10.1136/gut.5.1.1 VO 5 IS 1 A1 Felicity C. Edwards A1 S. C. Truelove YR 1964 UL http://gut.bmj.com/content/5/1/1.abstract AB