RT Journal Article SR Electronic T1 Correction JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1008 OP 1008 DO 10.1136/gut.2014.307891corr1 VO 64 IS 6 YR 2015 UL http://gut.bmj.com/content/64/6/1008.abstract AB