1. Gastroenterology and Endoscopy Unit Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
2. Endoscopy Service, Department of Diagnostic and Therapeutic Services IRCCS‐ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione) Palermo Italy
3. Digestive Endoscopy Unit, Department of Gastroenterology Papa Giovanni XXIII Hospital Bergamo Italy
4. Diagnostic and Interventional Digestive Endoscopy Niguarda Ca' Granda Hospital Milan Italy
5. Digestive Endoscopy Unit, Gemelli University Hospital Catholic University Rome Italy
6. Digestive Endoscopy Unit A. Cardarelli Hospital Napoli Italy
7. Emergency Endoscopy Unit Borgo Trento Hospital Verona Italy
8. Department of Gastroenterology and Transplantation, Gastroenterology Clinic Polytechnic Marche University ‐ United Hospitals of Ancona Ancona Italy
9. Liver Transplant Center and General Surgery, A.O.U. Città della Salute e della Scienza di Torino, Molinette Hospital University of Turin Turin Italy
10. U.O.C. Gastroenterology and Digestive Endoscopy Unit Nuovo Ospedale Civile Sant'Agostino Estense Modena Italy
11. Hepatobiliary Surgery and Liver Transplantation Unit, Department of Oncology, Transplants and Advances in Medicine University of Pisa Medical School Hospital Pisa Italy
12. Gastroenterology and Endoscopy Unit Azienda Ospedaliero‐Universitaria Policlinico di Modena Modena Italy
13. Diagnostic and Therapeutic Endoscopy Unit Foundation IRCCS Istituto Nazionale Tumori Milan Italy
14. University Clinical Hospital "Santa Maria della Misericordia" Udine Italy
15. Gastroenterology Section, Department of Emergency and Organ Transplantation University of Bari Bari Italy
16. Division of Gastroenterology, Department of Surgical, Oncological and Gastroenterological Sciences Azienda Ospedaliera ‐ Università di Padova Padova Italy
17. Liver Surgery, Transplantation and Gastroenterology University of Milan and Fondazione IRCCS Istituto Nazionale Tumori Milan Italy
18. Università degli Studi Milan Italy
19. Department of General Surgery and Transplantation, Niguarda Ca' Granda Hospital Università degli Studi Milano‐Bicocca Milan Italy
20. Gastroenterology and Hepatology Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico Università degli Studi di Milano Milan Italy
21. General Surgery and Liver Transplantation Unit, Department of Pathophysiology and Transplantation Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy