[1] Med Univ Vienna, Dept Gastroenterol & Hepatol, Vienna, Austria
[2] Icahn Sch Med Mt Sinai, Dept Gastroenterol, New York, NY USA
[3] Univ Calgary, Div Gastroenterol & Hepatol, Calgary, AB, Canada
[4] Univ N Carolina, Div Gastroenterol & Hepatol, Ctr Gastrointestinal Biol & Dis, Chapel Hill, NC USA
[5] Guys & St Thomas NHS Fdn Trust, Dept Gastroenterol, London, England
[6] AbbVie Inc, Res & Dev, N Chicago, IL USA
[7] Univ Amsterdam, Dept Gastroenterol, Med Ctr, Amsterdam, Netherlands