1. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, and Endoscopy Unit, Humanitas Clinical and Research Center IRCCS, Rozzano, Italy (C.H., M.S., A.R.)
2. Clinical Effectiveness Research Group, University of Oslo, Oslo, Norway, and Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M.)
3. Ted Rogers Centre for Heart Research, University Health Network, Toronto, Ontario, Canada (F.F.)
4. Department of Medical Sciences, Section of Gastroenterology, University of Foggia, Foggia, Italy (A.Facciorusso)
5. Department of Gastroenterology, Hepatopancreatology, and Digestive Oncology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium (P.G.)
6. Hepatogastroenterology Unit, Second Department of Internal Medicine-Propaedeutic, Medical School, National and Kapodistrian University of Athens, Attikon University General Hospital, Athens, Greece (G.T., K.T.)
7. Gastroenterology and Digestive Endoscopy Unit, Ospedale dei Castelli, Ariccia, and Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy (G.A.)
8. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy (K.K., T.R.)
9. Department of Medicine, Lovisenberg Diaconal Hospital, Oslo, Norway (P.O.V.)
10. Endoscopy Unit, Humanitas Clinical and Research Center IRCCS, Rozzano, Italy (A.Fugazza, L.C.)
11. Gastroenterology Unit, Valduce Hospital, Como, Italy (E.R.)
12. Center for Advanced Endoscopy, Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts (J.R.G.)
13. Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan (S.K.)
14. Gastroenterology and Endoscopy Unit, S. Elia-Raimondi Hospital, Caltanissetta, Italy (M.M.)
15. Department of Gastroenterology, Queen Alexandra Hospital, Portsmouth, United Kingdom (P.B.)
16. Departamento de Medicina Clínica, Servicio de Gastroenterología, Hospital General Universitario Dr. Balmis, Instituto de Investigación Biomédica de Alicante ISABIAL, Universidad Miguel Hernández, Alicante, Spain (R.J.)
17. Gastroenterology and Hepatology, Kansas City VA Medical Center, Kansas City, Missouri (P.S.)
18. Division of Gastroenterology, Indiana University School of Medicine, Indianapolis, Indiana (D.K.R.).