RT Journal Article SR Electronic T1 The CD40/CD40L costimulatory pathway in inflammatory bowel disease JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1035 OP 1043 DO 10.1136/gut.2003.026278 VO 53 IS 7 A1 Danese, S A1 Sans, M A1 Fiocchi, C YR 2004 UL http://gut.bmj.com/content/53/7/1035.abstract AB