1 Norwegian PSC Research Center, Department of Transplantation Medicine, Clinic of Surgery and Specialized medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Research Institute of Internal Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
2 Norwegian PSC Research Center, Department of Transplantation Medicine, Clinic of Surgery and Specialized medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Research Institute of Internal Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway. Electronic address: k.m.boberg@medisin.uio.no.