1. Department of Surgery Foundation Poliambulanza Brescia Italy
2. Hepatobiliary and Pancreatic Surgical Unit University Hospital Southampton NHS Foundation Trust Southampton UK
3. Department of Surgery Clarunis – University Centre for Gastrointestinal and Liver Diseases Basel Basel Switzerland
4. Division of Pancreatic and Transplant Surgery, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute Università Vita‐Salute Milan Italy
5. Department of Surgery Maastricht University Medical Center Maastricht The Netherlands
6. Department of Surgery, Monza Hospital University of Milano Bicocca Monza Italy
7. HPB Surgery University of Washington Seattle Washington USA
8. Department of HPB Surgery Metropolitan Hospital Athens Greece
9. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Asan Medical Center University of Ulsan College of Medicine Seoul Korea
10. Division of General Surgery, Department of Surgery University of Toronto Toronto Ontario Canada
11. Department of Surgery Thomas Jefferson University Philadelphia Pennsylvania USA
12. Department of Surgery Duke University Medical Center Durham North Carolina USA
13. Division of HPB Surgery, Department of Surgery Carolinas Medical Center Charlotte North Carolina USA
14. Department of Hepatobiliary and Pancreatic Surgery University Hospitals Birmingham NHS Foundation Trust Birmingham UK
15. Department of Surgery, Clinical Sciences Lund, Skåne University Hospital Lund University Lund Sweden
16. Department of Surgery Radboud University Medical Center Nijmegen The Netherlands
17. Department of Surgery Memorial Sloan Kettering Cancer Center New York New York USA
18. Department of Surgery Konstantopouleio General Hospital Athens Greece
19. Geriatrics Operating Units Foundation Poliambulanza Brescia Italy