RT Journal Article SR Electronic T1 IBS with intestinal microbial dysbiosis: a new and clinically relevant subgroup? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1685 OP 1686 DO 10.1136/gutjnl-2013-306434 VO 63 IS 11 A1 Magnus Simrén YR 2014 UL http://gut.bmj.com/content/63/11/1685.abstract AB