RT Journal Article SR Electronic T1 Ondansetron and irritable bowel syndrome JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1181 OP 1181 DO 10.1136/gutjnl-2014-307551 VO 64 IS 7 A1 Pavit Luthra A1 Alexander C Ford YR 2015 UL http://gut.bmj.com/content/64/7/1181.1.abstract AB