RT Journal Article SR Electronic T1 Correction JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1528 OP 1528 DO 10.1136/gutjnl-2014-307263.152corr1 VO 63 IS 9 YR 2014 UL http://gut.bmj.com/content/63/9/1528.abstract AB