1. Department of Internal Medicine III, Division of Gastroenterology and Hepatology, Medical University of Vienna, Austria
2. Department of Endoscopic Services, Western Health, Melbourne, Australia
3. Digestive Endoscopy Unit, Nuovo Regina Margherita Hospital, Rome, Italy
4. Solent Centre for Digestive Diseases, Queen Alexandra Hospital, Portsmouth, UK
5. Gedyt Endoscopy Center, Buenos Aires, Argentina
6. Department of Gastroenterology, Benizelion General Hospital, Heraklion, Crete, Greece
7. Unidad de Gastroenterología, Servicio de Medicina Digestiva, Instituto de Investigación Sanitaria ISABIAL, Hospital General Universitario de Alicante, Alicante, Spain
8. Department of Pathology, Medical University of Graz, Graz, Austria
9. Department of Gastroenterology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
10. Institute of Gastroenterology and Hepatology, Ha’Emek Medical Center, Afula, Israel and Rappaport Family Faculty of Medicine Technion-Israel Institute of Technology, Haifa, Israel
11. Quality Assurance Working Group of the Austrian Society of Gastroenterology and Hepatology
12. Department of Digestive Endoscopy, University Hospital, CHU Fort de France, France
13. Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, Netherlands
14. Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
15. Konstantopoulio General Hospital, Athens, Greece
16. Department of Gastroenterology, Asklepios Klinik Altona, Hamburg, Germany
17. Department of Endoscopy and Gastroenterology, Edouard Herriot Hospital, Lyon, France
18. Department of Gastroenterology, Maria Sklodowska-Curie Memorial CancerCenter and Medical Centre for Postgraduate Education, Warsaw, Poland
19. Humanitas Research Hospital, Humanitas University, Rozzano, Milan, Italy
20. School of Medicine, Pharmacy and Health, Durham University, Durham, UK
21. Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, Australia