RT Journal Article SR Electronic T1 An unusual internal pile JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 508 OP 508 DO 10.1136/gut.2006.096982 VO 56 IS 4 A1 Honein, Khalil A1 Slim, Rita A1 Daniel, Fady A1 Tohme, Cyril A1 Yaghi, Cesar A1 Boujaoude, Joe A1 Sayegh, Raymond YR 2007 UL http://gut.bmj.com/content/56/4/508.abstract AB