RT Journal Article SR Electronic T1 A Paneth cell surrogate? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 741 OP 742 DO 10.1136/gut.50.5.741-a VO 50 IS 5 A1 C A Rubio YR 2002 UL http://gut.bmj.com/content/50/5/741.2.abstract AB