1. Simula Research Laboratory, Norway, University of Oslo, Norway
2. Cancer Registry of Norway, University of Oslo, Norway
3. Bærum Hospital, Norway, Cancer Registry of Norway
4. Bærum Hospital, Norway
5. UiT-The Arctic University of Norway
6. University of Catania, Italy
7. University of Klagenfurt, Austria
8. Karolinska Institutet, Solna, Sweden, Karolinska Hospital, Sweden