1. Institute of Clinical Medicine, University of Oslo, Oslo, Norway
2. Department of Transplantation Medicine, Division of Surgery, Inflammatory diseases and Transplantation, Norwegian PSC Research Center, Oslo University Hospital, Oslo, Norway
3. Division of Surgery, Inflammatory diseases and Transplantation, Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
4. Division of Internal Medicine, Nordland Hospital, Bodø, Norway
5. Faculty of Health Sciences, University of Tromsø, Tromsø, Norway
6. Department of Oncology, Oslo University Hospital, Oslo, Norway
7. Institute of Clinical Medicine, University of Tromsø, Tromsø, Norway
8. Section of Clinical Immunology and Infectious diseases, Division of Cancer Medicine, Surgery and Transplantation, Oslo University Hospital, Oslo, Norway
9. Department of Transplantation Medicine, Section of Gastroenterology, Oslo University Hospital, Oslo, Norway