[1] Icahn Sch Med Mt Sinai, Henry D Janowitz Div Gastroenterol, 1 Gustave L Levy Pl, New York, NY 10029 USA
[2] Univ North Carolina Chapel Hill, Dept Pediat, Div Pediat Gastroenterol, Chapel Hill, NC USA
[3] Chinese Univ Hong Kong, Dept Med & Therapeut, Inst Digest Dis, Li Ka Shing Inst Hlth Sci,State Key Lab Digest Di, Hong Kong, Peoples R China
[4] Univ North Carolina Chapel Hill, Div Gastroenterol, Dept Med, Chapel Hill, NC USA
[5] Univ Calgary, Div Gastroenterol & Hepatol, Dept Med, Calgary, AB, Canada
[6] Med Univ Vienna, Div Gastroenterol & Hepatol, Vienna, Austria
[7] Hosp Israelita Albert Einstein, Div Gastroenterol & Hepatol, Sao Paulo, Brazil
[8] Univ Penn, Div Gastroenterol & Hepatol, Philadelphia, PA 19104 USA
[9] New York Gastroenterol Associates, Div Gastroenterol & Hepatol, New York, NY USA
[10] Pfizer Inc, Dept Inflammat & Immunol, New York, NY USA