1. Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, "Sapienza" University of Rome, Italy
2. Gastroenterology and Digestive Endoscopy Unit, Ospedale dei Castelli Hospital, Ariccia, Rome, Italy
3. Department of Gastroenterology, Colentina Clinical Hospital, Bucharest, Romania
4. “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
5. Endoscopy Unit, Gastroenterology Department, Hospital of the Ministry of Interior and Administration, Szczecin, Poland
6. The Center for Therapeutic Endoscopy and Endoscopic Oncology, St. Michael's Hospital, University of Toronto, Ontario, Canada
7. Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal
8. Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
9. Gastroenterology Division, Internal Medicine and Hematology Department, Semmelweis University, Budapest, Hungary
10. Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Belgium
11. Department of Gastroenterology and Hepatology, Imelda General Hospital, Bonheiden, Belgium
12. Division of Gastroenterology, Medical Department II, University of Leipzig Medical Center, Leipzig, Germany
13. Hepatology and Gastroenterology Department, National Liver Institute, Menoufia University, Menoufia, Egypt
14. ESGENA Scientific Secretary, Ulm, Germany
15. IHU Strasbourg, Strasbourg, France
16. Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
17. Department of Gastroenterology, Hospital Clínic Barcelona, Barcelona, Spain
18. Gastroenterology Department, Portuguese Oncology Institute of Porto, Porto, Portugal
19. MEDCIDS/Faculty of Medicine, University of Porto, Porto, Portugal
20. Gastroenterology Department, Attikon University Hospital, Chaidari, Greece
21. Department of Gastroenterology and Hepatology, University Hospitals Leuven, TARGID, Leuven, Belgium
22. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
23. Endoscopy Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
24. Department of Gastroenterology, Faculty of Medicine, University of Augsburg, Augsburg, Germany
25. Institute of Gastroenterology and Hepatology, Emek Medical Center, Afula, Israel
26. Rappaport Faculty of Medicine Technion Israel Institute of Technology, Haifa, Israel