[1] Univ Leuven, Chron Dis & Metab, Leuven, Belgium
[2] Goethe Univ, Med, Agaples Markus Hosp, Frankfurt, Germany
[3] Icahn Sch Med Mt Sinai, Gastroenterol, New York, NY USA
[4] Bristol Myers Squibb, Clin Res, Princeton, NJ USA
[5] Univ Chicago, Gastroenterol, Med Inflammatory Bowel Dis Ctr, Chicago, IL USA
[6] Cleveland Clin, Digest Dis & Surg Inst, Cleveland, OH USA