1 Department of Gastrointestinal Surgery, Stavanger University Hospital, Stavanger, Norway.
2 Department of Clinical Medicine, University of Bergen, Bergen, Norway.
3 Division of Surgery and Oncology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
4 College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia.
5 HPB and Liver Transplant Unit, Flinders Medical Centre, Adelaide, South Australia, Australia.
6 Hepatopancreatobiliary and Transplant Unit, Freeman Hospital, Newcastle upon Tyne, UK.