RT Journal Article SR Electronic T1 Author's response JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 139 OP 140 DO 10.1136/gut.2010.222240 VO 60 IS 1 A1 Jeremy G C Kingham YR 2011 UL http://gut.bmj.com/content/60/1/139.2.abstract AB