RT Journal Article SR Electronic T1 Signals on the immune tract JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 164 OP 165 DO 10.1136/gut.49.2.164 VO 49 IS 2 A1 M F NEURATH YR 2001 UL http://gut.bmj.com/content/49/2/164.abstract AB