RT Journal Article SR Electronic T1 Peripheral arthropathies in inflammatory bowel disease JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 439 OP 439 DO 10.1136/gut.44.3.439-a VO 44 IS 3 A1 E H FORREST A1 R I RUSSELL YR 1999 UL http://gut.bmj.com/content/44/3/439.1.abstract AB