1. Finnish Cancer Registry, Helsinki, Finland
2. Department of Research, Cancer Registry of Norway, Oslo, Norway
3. University Research Clinic for Cancer Screening, Randers Regional Hospital, Randers, Denmark
4. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
5. Department of Pathology, University of Helsinki, Helsinki, Finland
6. Data and Analytics Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
7. The Icelandic Cancer Society, Reykjavik, Iceland
8. Cancer Registry of Norway, Oslo, Norway
9. Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
10. Department of Public Health, University of Helsinki, Helsinki, Finland