1. Gastroenterology and Hepatology Department, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
2. Porto Comprehensive Cancer Center (Porto.CCC), and RISE@CI-IPOP (Health Research Network), Porto, Portugal
3. Dartmouth Geisel School of Medicine, Hanover, New Hampshire, and Section of Gastroenterology and Hepatology, VA White River Junction, Vermont, USA
4. Division of Gastroenterology and Hepatology, Dell Medical School, University of Texas Austin, Texas, USA
5. Department of Gastroenterology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
6. King’s Health Partners Institute for Therapeutic Endoscopy, King’s College Hospital, and Wolfson Unit for Endoscopy, St Mark’s Hospital, London, United Kingdom
7. Department of Gastroenterology and Internal Medicine, Clinical Hospital of Medical University of Warsaw, Warsaw, Poland
8. Gastroenterology, Portsmouth Hospital NHS Trust, Portsmouth, UK
9. Clinical Effectiveness Research Group, University of Oslo, and Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
10. Endoscopy Department, University Hospital of Padua, Italy
11. Endoscopy Department, Northumbria Healthcare NHS Trust, Northumberland, United Kingdom
12. Klinik für Gastroenterologie, Diabetologie, Infektiologie, Klinikum Hanau, Hanau, Germany
13. Department of Gastroenterology, University College London Hospitals, London, United Kingdom
14. Department of Cancer Prevention and Department of Oncological Gastroenterology, The Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
15. Clinical Hospital Center Rijeka , Department of Gastroenterology, Endoscopy Unit, Rijeka, Croatia
16. Department of Gastroenterology, University and Polytechnic La Fe Hospital/IIS La Fe, Valencia, Spain
17. Department of Gastroenterology, Hospital Clinic of Barcelona, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), and Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
18. Endoscopy Unit, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
19. Department of Gastroenterology, Dudley Group Hospitals NHS Foundation Trust, Dudley, United Kingdom
20. Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
21. Division of Gastroenterology, Ulster Hospital, Dundonald, Belfast, Northern Ireland
22. Hepatogastroenterology Unit, Second Department of Internal Medicine - Propaedeutic, Medical School, National and Kapodistrian University of Athens, Attikon University General Hospital, Athens, Greece
23. Digestive Endoscopy Unit, ULSS 2 Marca Trevigiana, Conegliano Hospital, Conegliano, Italy
24. Department of Gastroenterology, Royal Wolverhampton NHS Trust, Wolverhampton, United Kingdom
25. Department of Gastroenterology and Hepatology, Colentina Clinical Hospital, Bucharest, Romania
26. Hôpital Privé d’Antony, Antony, France
27. Ulm, Germany
28. Department of Gastroenterology and Hepatology, Catholic University of Leuven (KUL), TARGID, University Hospitals Leuven, Leuven, Belgium
29. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, and Endoscopy Unit, IRCCS Humanitas Clinical and Research Center, Rozzano, Milan, Italy
30. Ellen and Pinchas Mamber Institute of Gastroenterology and Hepatology, Emek Medical Center, Afula, and Rappaport Faculty of Medicine Technion Israel Institute of Technology, Haifa, Israel
31. III Medizinische Klinik Universitätsklinikum Augsburg, Augsburg, Germany