1. Department of Gastroenterology, ASST Rhodense, Rho and Garbagnate M.se Hospitals, Milan, Italy
2. Gastroenterology Department, Benizelion General Hospital, Heraklion, Crete, Greece
3. GI Endoscopy, Rikshospitalet University Hospital, Hospital and Faculty of Medicine, University of Oslo, Oslo, Norway
4. Digestive Endoscopy Unit, Division of Gastroenterology, Humanitas Research Hospital, Rozzano, Milan, Italy
5. Department of Gastroenterology, Hepatology and Digestive Oncology, Erasme University Hospital Université Libre de Bruxelles, Brussels, Belgium
6. Service d'Hépato-Gastroentérologie, Hôpital Saint-Musse, Toulon, France
7. Service d'Hépato-gastroentérologie, Hôpital Nord, Marseille, France
8. Department of Medicine B, University of Münster, Münster, Germany
9. Gedyt Endoscopy Center, Buenos Aires, Argentina
10. Department of Abdominal Surgery and Transplantation, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
11. Semmelweis University, 1st Department of Surgery, Endoscopy Unit, Budapest, Hungary
12. Academic Department of Gastroenterology, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
13. Pathological Sciences, Sapienza University, Rome, Italy
14. Pancreato-Biliary Endoscopy and Endosonography Division, Pancreas Translational & Clinical Research Center, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute, Milan, Italy
15. Gastroenterology Unit, Konstantopoulio General Hospital, Athens, Greece
16. Department of Gastroenterology and Interventional Endoscopy, Klinikum Friedrichshain, Berlin, Germany
17. Department of Digestive Diseases, Hôpital Edouard Herriot, Lyon, France
18. Center for Digestive Diseases, Karolinska University Hospital and Division of Surgery, CLINTEC, Karolinska Institute, Stockholm, Sweden
19. Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
20. Digestive Endoscopy Unit, Catholic University, Rome, Italy
21. Gastroenterology Unit, 2 Department of Surgery, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
22. Department of Gastroenterology, Royal Bournemouth Hospital, Bournemouth, UK
23. Department of Gastroenterology and Hepatology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands