KatjaChristodoulou, Anthony EWiskin, JaneGibson, WilliamTapper, ClaireWillis, Nadeem AAfzal, RosannaUpstill-Goddard, John WHolloway, Michael ASimpson, R MarkBeattie, AndrewCollins, SarahEnnis
Gut Jul 2013, 62 (7) 977-984; DOI: 10.1136/gutjnl-2011-301833