RT Journal Article SR Electronic T1 Reply JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1428 OP 1429 DO 10.1136/gut.32.11.1428-a VO 32 IS 11 A1 Cornel Sieber A1 Christoph Beglinger A1 Kurt Jaeger YR 1991 UL http://gut.bmj.com/content/32/11/1428.2.abstract AB