1 Department of Hepato-Pancreato-Biliary Surgery, Oslo University Hospital, Oslo, Norway.
2 Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
3 Department of Clinical Science, Intervention and Technology, Division of Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
4 Department of Surgery, Skane University Hospital, Lund, Sweden.
5 Department of Surgery, Akademiska University Hospital, Uppsala, Sweden.
6 Department of Surgery and Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
7 Department of Transplantation and Liver Surgery, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.