1. Department of Oncology, University of Oslo and Akershus University Hospital, Akershus, Norway
2. Department of Oncology, Helsinki University Hospital Comprehensive Cancer Centre and University of Helsinki, Helsinki, Finland
3. Department of Oncology, University of Copenhagen Herlev Hospital, Copenhagen, Denmark
4. Department of Oncology, Örebro University Hospital, Örebro, Sweden
5. Department of Oncology, Novartis, Stockholm, Sweden
6. Department of Oncology, Karlstad Hospital, Karlstad, Sweden
7. Akershus University Hospital, Akershus, Norway
8. Department of Medical Epidemiology and Biostatistics/Kirurgmottagningen, Karolinska Institutet and Capio St Görans sjukhus, Stockholm, Sweden
9. Department of Hematology, Oncology and Radiotherapy, Lund University Hospital, Lund, Sweden
10. Herlev and Gentofte Hospital, Herlev/Gentofte, Denmark
11. Sygehus Sønderjylland, Sønderborg, Denmark
12. Aarhus University Hospital, Aarhus, Denmark
13. Landspitali Hospital, Reykjavik, Iceland
14. Lapland Central Hospital, Rovaniemi, Finland
15. Møre and Romsdal Hospital, Ålesund, Norway
16. Department of Oncology, Sahlgrenska Academy and University Hospital, Gothenburg, Sweden
17. Department of Immunology, Genetics and Pathology, Experimental and Clinical Oncology and Clinical Oncology, Uppsala University Hospital, Uppsala, Sweden
18. Nordland Hospital, Bodø, Norway
19. Växjö Regional Hospital, Växjö, Sweden
20. Vestre Viken Hospital, Drammen, Norway
21. Oulu University hospital, Oulu, Finland
22. Østfold Hospital, Kalnes, Norway
23. University Hospital of North Norway HF, Tromsø, Norway
24. Rigshospitalet/Copenhagen University Hospital, Copenhagen, Denmark
25. Department of Oncology, Sahlgrenska Academy, Gothenburg, Sweden
26. Tampere University Hospital, Tampere, Finland
27. Mälarsjukhuset Hospital, Eskilstuna, Sweden
28. Aalborg University Hospital, Aalborg, Denmark