1 Institute of Medical Sciences, University of Aberdeen, Scotland, UK.
2 Department of Surgery, NHS Grampian, Scotland, Aberdeen, UK.
3 Department of Surgery, CHU - St Pierre, Brussels, Belgium.
4 Northwest Hepatobiliary Unit, Department of Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK.
5 Departement of General, Visceral, Cancer and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
6 Division of Hepatobiliary and Pancreas Surgery, Mayo Clinic Rochester, Rochester, USA.
7 Hepatobiliary Surgery Division, San Raffaele Hospital, Milan, Italy.
8 Department of Surgery, Makati Medical Center, Makati Metro Manila, Philippines.
9 Department of Surgery, National Kidney & Transplant Institute, Quezon, Philippines.
10 Department of Surgery, St Luke's Medical Center, Quezon, Philippines.
11 Moscow Clinical Scientific Center, Department of liver and pancreatic surgery and Transplantation, Russia.
12 Department of HPB and Transplantation, Freeman Hospital, Newcastle upon Tyne, Newcastle, UK.
13 Department of Surgery, Oxford University Hospital, Oxford, UK.
14 Department of Surgery, Centre Hospitalier Régional Universitaire de Lille: Lille, Nord-Pas-de-Calais, Lille, France.
15 Department of Surgical Oncology, Mauriziano Hospital, Turin, Italy.
16 Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
17 Department of Surgery, National Center for Global Health and Medicine (NCGM), Tokyo, Japan.
18 Department of Surgery, The Ohio State University Wexner Medical Center, Ohio, USA.
19 Surgical Unit, HPB Integrated Center of Care, Elite Integrated Centers of Excellence, Alexandria, Egypt.