1. Department of Oncology, Herlev & Gentofte University Hospital, DK-2730, Herlev, Denmark
2. Present address: Employment with Dept. of Oncology, Herlev & Gentofte University hospital, DK-2730, Herlev, Denmark, Denmark ended during the writing of the article
3. Department of Oncology, Rigshospitalet, Copenhagen University Hospital, DK-2100, Copenhagen, Denmark
4. Department of Oncology, Aarhus University Hospital, DK-8000, Aarhus, Denmark
5. Department of Oncology, Aalborg University Hospital, DK-9000, Aalborg, Denmark
6. Department of Oncology, Vejle Hospital, University Hospital of Southern Denmark, DK-7100, Vejle, Denmark
7. Department of Oncology, Næstved Hospital, DK-4700, Næstved, Denmark
8. Department of Pathology, Rigshospitalet, Copenhagen University Hospital, DK-2100, Copenhagen, Denmark
9. VIVE, Copenhagen, Denmark (The Danish Center for Social Science Research), DK-1052, Copenhagen, Denmark
10. Present address: Steno Diabetes Center, DK-2730, Herlev, Denmark
11. VIVE, Aarhus, Denmark (The Danish Center for Social Science Research), DK-8230, Åbyhøj, Denmark
12. Present address: Novo Nordisk, Søborg, DK-2860, Denmark
13. Takeda Pharma A/S, Delta Park 45, DK-2665, Vallensbæk Strand, Denmark
14. Department of Oncology, Odense University Hospital, DK-5000, Odense, Denmark