1. Pancreaticobiliary Medicine Unit, University College London Hospitals (UCLH), London NW1 2BU, UK
2. Gastroenterology and Endoscopy Unit, S. Elia-Raimondi Hospital, 93100 Caltanissetta, Italy
3. Department of Gastroenterology, General Hospital of Nea Ionia “Konstantopoulio-Patision”, 14233 Athens, Greece
4. Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, Erasme University Hospital, Université Libre de Bruxelles, 1070 Brussels, Belgium
5. Gastroenterology and Hepatology, University of Utah Health, Salt Lake City, UT 84132, USA
6. Gastroenterology Unit, Department of Surgical and Medical Sciences, University of Foggia, 37920 Foggia, Italy
7. Institute for Liver and Digestive Health, University College London, London NW3 2PF, UK
8. Department of HPB Surgery and Liver Transplantation, Royal Free Hospital, London NW3 2QG, UK
9. Research Center of Gastroenterology and Hepatology Craiova, University of Medicine and Pharmacy “Carol Davila”, 4192910 Bucharest, Romania