[1] Ohio State Univ, Div Gastroenterol Hepatol & Nutr, Wexner Med Ctr, Columbus, OH 43210 USA
[2] Duke Univ Hlth Syst, Div Gastroenterol, Raleigh, NC USA
[3] Cleveland Clin, Dept Gastroenterol Hepatol & Nutr, Cleveland, OH USA
[4] Stony Brook Med, Div Gastroenterol & Hepatol, Stony Brook, NY USA
[5] Univ Chicago, Digest Dis Ctr, Chicago, IL USA
[6] Univ Virginia Hlth Syst, Div Gastroenterol & Hepatol, Charlottesville, VA USA
[7] Washington Univ, Div Gastroenterol, Sch Med, St Louis, MO USA
[8] Swedish Med Ctr, Dept Gastroenterol, Issaquah, WA USA
[9] Mayo Clin, Dept Gastroenterol & Hepatol, Scottsdale, AZ USA
[10] Harvard Med Sch, Dept Internal Med, Div Gastroenterol, Boston, MA USA
[11] Massachusetts Gen Hosp, Boston, MA USA
[12] Emory Univ, Dept Gastroenterol, Atlanta, GA USA
[13] Univ Penn, Dept Gastroenterol, Philadelphia, PA USA
[14] Univ Minnesota, Div Gastroenterol Hepatol & Nutr, Minneapolis, MN USA
[15] Long Isl Jewish Med Ctr, Zucker Sch Med Hofstra Northwell, Dept Gastroenterol, New Hyde Pk, NY USA
[16] Albert Einstein Coll Med, Montefiore Med Ctr, Div Gastroenterol, Bronx, NY USA
[17] Mayo Clin, Dept Gastroenterol & Hepatol, Rochester, MN USA
[18] Boston Univ, Boston Med Ctr, Div Gastroenterol, Sch Med, Boston, MA USA