IU School of Medicine - Gastroenterology, Indianapolis, Indiana, United States
Aarhus University Hospital, Aarhus C, Denmark
Ninewells Hospital & Medical School, Dundee, United Kingdom
AO S.Maria degli Angeli, S.S.D. Degenze Brevi 1^ 2^ Chirurgia Ginecologia e Urologia, Pordenone, Italy
Atlanta Gastroenterology Associates, Atlanta, Georgia, United States
Dayton Gastroenterology, Beavercreek, Ohio, United States
Pinnacle Research Group, LLC, Anniston, Alabama, United States
Tulane University Hospital and Clinics, New Orleans, Louisiana, United States
Bikur Holim medical center, Jerusalem, Israel
Evangelisches Krankenhaus Zweibrücken - Obere Himmelsbergstr. 38, Zweibrücken, Germany
Fletcher Allen Health Care, Burlington, Vermont, United States
Rambam medical center, Haifa, Israel
Bikur Holim medical center, Jerusalem, Israel
Servicio de Digestivo Hospital de Navarra, Pamplona, Spain
University Hospital, Bucharest, Romania