[1] Aurora St Lukes Med Ctr, Dept Gastroenterol, Milwaukee, WI USA
[2] Univ Pittsburgh, Dept Med, Pittsburgh, PA USA
[3] Hop Beaujon, AP HP, Serv Gastroenterol Pancreatol, Pole Malad Appareil Digestif, Clichy, France
[4] All India Inst Med Sci, Dept Gastroenterol, New Delhi, India
[5] Med Univ South Carolina, Dept Gastroenterol, Charleston, SC 29425 USA
[6] Univ Iowa, Stead Family Childrens Hosp, Iowa City, IA USA
[7] Florida Hosp, Ctr Intervent Endoscopy, Orlando, FL USA
[8] Mayo Clin, Dept Gastroenterol, Rochester, MN USA
[9] Univ S Florida, Dept Gastroenterol, Gainesville, FL USA
[10] Asian Inst Gastroenterol, Hyderabad, Telangana, India
[11] State Univ New York, Dept Gastroenterol, Brooklyn, NY USA
[12] Univ Southampton, Dept Surg, Southampton, Hants, England
[13] Indiana Univ Sch Med, Dept Radiol, Indianapolis, IN 46202 USA
[14] Univ Miami, Dept Surg, Miami, FL USA
[15] Univ Med Greifswald, Dept Med A, Greifswald, Germany
[16] Univ Minnesota, Div Gastroenterol, Minneapolis, MN USA