RT Journal Article SR Electronic T1 Current Topics in Immunology Series JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 430 OP 431 DO 10.1136/gut.19.5.430-a VO 19 IS 5 A1 Jewell, D. P. YR 1978 UL http://gut.bmj.com/content/19/5/430.2.abstract AB