1. Department of Surgery, Maastricht University Medical Center+, Maastricht, the Netherlands
2. Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen, Germany
3. Hepatobiliary Surgery Division, IRCCS San Raffaele Hospital, Milan, Italy
4. Department of Surgery, Southampton University Hospital NHS Foundation Trust, Southampton, United Kingdom
5. Department of Surgery, Poliambulanza Hospital, Brescia, Italy
6. Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Transplantation Service, Federico II University, Naples, Italy
7. Department of General, Hepatobiliary and Liver Transplantation Surgery, Ghent University Hospital, Ghent, Belgium
8. Department of Surgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
9. Department of Surgery, Amsterdam UMC, Location University of Amsterdam, Amsterdam, the Netherlands
10. Cancer Center Amsterdam, the Netherlands
11. Department of Surgery, Plymouth Hospitals NHS Trust, Plymouth, United Kingdom
12. Department of Surgery, King's College Hospital NHS Foundation Trust, London, United Kingdom
13. Intervention Center and Department of Hepatic, Pancreatic and Biliary Surgery, Oslo University Hospital and Institute of Medicine, University of Oslo, Oslo, Norway
14. Department of Digestive and Hepatobiliary/Pancreatic Surgery, AZ Groeninge, Kortrijk, Belgium
15. Department of Digestive Surgery, Unit of Hepatobiliary Surgery and Transplantation, Hôpitaux Universitaires de Bruxelles, Hôpital Erasme, Brussels, Belgium
16. Department of Hepato-Biliary Surgery, Aintree University Hospital NHS Foundation Trust, Liverpool, United Kingdom
17. Department of Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
18. Department of Surgery, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom
19. Department of Digestive and Hepatobiliary/Pancreatic Surgery, Jessa Hospital, Hasselt, Belgium
20. GROW—School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
21. Department of Surgery, Free University Hospital, AZ Jette Hospital, Brussels, Belgium
22. Deceased
23. Southampton Clinical Trials Unit, University of Southampton, Southampton, United Kingdom
24. Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, Maastricht, the Netherlands
25. Department of Surgery, University Hospital Essen, Essen, Germany
26. Department of Oncology, Addenbrooke's Hospital, Cambridge, United Kingdom
27. Department of Methodology and Statistics, CAPHRI Care and Public Health Research Institute Maastricht University, Maastricht, the Netherlands