Internal Medicine & Gastroenterology, University of Bologna,, Bologna, Italy
Departement of Internal Medicine, Sahlgrenska Universitetss, Göteborg, Sweden
Mayo Clinic,, Rochester, Minnesota, United States
Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States
University of Alabama at Birmingham, Birmingham, Alabama, United States
MetroHealth Medical Center, Cleveland, Ohio, United States
Santa Barbara Cottage Hospital, Santa Barbara, California, United States
Texas Health Research & Education Institute, Fort Worth, Texas, United States
Tulane University, New Orleans, Louisiana, United States
Toronto General Hospital, Toronto, Ontario, Canada
Toronto Western Hospital, Toronto, Ontario, Canada
Hospital Erasme - Gastro-Enterologie, Brussels, Belgium
Academic Medical Center University of Amsterdam, Amsterdam, Netherlands
Chef de Service dHepato-Gastro-Enterologie et dAssistance Nutritionnelle CHU Nantes, Nantes, France
Beth Israel Deaconess, Boston, Massachusetts, United States
Boston Medical Center, Boston, Massachusetts, United States
Clarian Bariatric Center/Indiana University, Indianapolis, Indiana, United States
Lenox Hill Hospital 186 E76th Street, 1st Floor, New York City, New York, United States
Rambma Medical Center, Haifa, Israel
Prince of Wales Hospital, Hong Kong, China, Shating, N.t., Hong Kong
Northwestern University, Chicago, Illinois, United States
University of Massachusetts Memorial Medical Center, Worcester, Massachusetts, United States
University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States