RT Journal Article SR Electronic T1 Clostridium difficile infection and inflammatory bowel disease: a marker for disease extent? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1183 OP 1184 VO 57 IS 8 A1 N Powell A1 S E Jung A1 B Krishnan YR 2008 UL http://gut.bmj.com/content/57/8/1183.abstract AB