RT Journal Article SR Electronic T1 The Authors' reply JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 423 OP 423 DO 10.1136/gut.2010.226217 VO 60 IS 3 A1 Guy E Boeckxstaens A1 Tamira Klooker YR 2011 UL http://gut.bmj.com/content/60/3/423.2.abstract AB