1. Transplantation and Liver Surgery Clinic; Helsinki University Hospital; Helsinki Finland
2. Finnish Cancer Registry - Institute for Statistical and Epidemiological Cancer Research; Helsinki Finland
3. Faculty of Social Sciences; University of Tampere; Tampere Finland
4. Department of Surgery and Transplantation, Rigshospitalet; Copenhagen Denmark
5. Danish Cancer Society; Copenhagen Denmark
6. Transplant Institute; Sahlgrenska University Hospital; Gothenburg Sweden
7. Division of Transplantation Surgery; Karolinska Institutet and Karolinska University Hospital Huddinge; Stockholm Sweden
8. The Norwegian Cancer Registry; Oslo Norway
9. Department of Transplantation Medicine; Oslo University Hospital, Rikshospitalet; Oslo Norway
10. Institute of Clinical Medicine; University of Oslo; Oslo Norway
11. Norwegian PSC Research Center; Department of Transplantation Medicine; Division of Surgery; Inflammatory Diseases and Transplantation; Oslo University Hospital, Rikshospitalet; Oslo Norway
12. Research Institute of Internal Medicine; Oslo University Hospital Rikshospitalet; Oslo Norway