1. General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona, Verona, Italy;
2. Pancreatico-Biliary Endoscopy and Endosonography Division, Pancreas Translational and Clinical Research Centre, San Raffaele Scientific Institute IRCCS, Vita-Salute San Raffaele University, Milan, Italy;
3. Department of Gastroenterology, Endoscopy Unit, Humanitas Research Hospital, IRCCS, Rozzano, Milan, Italy;
4. Department of Surgery, Dentistry, Pediatrics, and Gynecology, University of Verona, Verona, Italy;
5. Hepatopancreatobiliary Surgery Unit, Pederzoli Hospital, Peschiera del Garda, Verona, Italy;
6. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy;
7. Pancreatic Surgery Department, IRCCS Humanitas Research Hospital, Rozzano, Italy;
8. Radiology Department, Humanitas Research Hospital-IRCCS, Milan, Italy;
9. Gastroenterology and Gastrointestinal Endoscopy Unit, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute, Milan, Italy;
10. Genetics and Cancer Prevention, Humanitas Research Hospital-IRCCS, Milan, Italy;
11. Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy;
12. UOSD Gastroenterologia ed Endoscopia Digestiva Istituto Nazionale Tumori Regina Elena, Rome, Italy;
13. Gastroenterology Unit Veneto Institute of Oncology IOV-IRCCS, Padua, Italy;
14. Department of Surgery, Oncology and Gastroenterology, Pancreatic and Endocrine Surgery Unit, University of Padova, Padova, Italy;
15. Gastroenterology and Digestive Endoscopy Unit, Forlì-Cesena Hospitals, AUSL Romagna, Italy;
16. Division of Pancreatic Surgery, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy;
17. Department of Internal Medicine and Surgery (DIMEC), Alma Mater Studiorum, University of Bologna, Bologna, Italy;
18. Gastroenterology Unit, Department of Oncological and Specialty Medicine, Azienda Ospedaliero-Universitaria Maggiore della Carità, Novara, Italy;
19. Unit of Gastroenterology and Digestive Endoscopy, Azienda USL-IRCCS Di Reggio Emilia, Reggio Emilia, Italy;
20. Gastroenterology Unit, Department of Medicine, University of Verona, Verona Italy;
21. Digestive Endoscopy Unit, University Campus Bio-Medico, Rome, Italy;
22. Romagna Cancer Registry IRCCS Istituto Romagnolo per lo Studio dei Tumori “Dino Amadori” (IRST), Meldola, Forlì-Cesena, Italy;
23. Digestive Disease Unit, Sant' Andrea University Hospital, Rome, Italy;
24. Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Rome, Italy;
25. Department of Gastroenterology, San Carlo Hospital, Potenza;
26. Unit of Biostatistics and Clinical Trials, IRCCS Istituto Romagnolo per lo Studio dei Tumori “Dino Amadori” (IRST), Meldola, Forlì-Cesena, Italy;
27. Department of Medicine and Surgery, University of Parma, Parma, Italy;
28. Laboratory of Molecular Gastroenterology, IRCCS Humanitas Research Hospital, Rozzano, Italy;
29. Division of Pancreatic and Transplantation Surgery, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute, Milan, Italy; Vita-Salute University, Milan, Italy.