1 Department of Gastrointestinal Surgery, Stavanger University Hospital, Stavanger, Norway. ksoreide@mac.com.
2 Department of Clinical Medicine, University of Bergen, Bergen, Norway. ksoreide@mac.com.
3 Gastrointestinal Translational Research Unit, Stavanger University Hospital, Stavanger, Norway. ksoreide@mac.com.
4 Division of Surgery and Oncology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden. ksoreide@mac.com.
5 Division of Surgery and Oncology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
6 Hepato-pancreato-biliary and Transplant Unit, Freeman Hospital, Newcastle Upon Tyne, UK.
7 Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, UK.