1. Department of Oncology, Herlev and Gentofte Hospital Copenhagen University Hospital Copenhagen Denmark
2. Department of Surgery, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
3. Department of Medicine Herlev and Gentofte HospitalCopenhagen University Hospital Copenhagen Denmark
4. Statistics and Pharmacoepidemiology Danish Cancer Society Research Center Copenhagen Denmark
5. Department of Pathology, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
6. Department of Oncology at Zealand University Hospital Næstved Denmark
7. Department of Oncology Odense University Hospital Odense Denmark
8. Department of Oncology Aalborg University Hospital Aalborg Denmark
9. Department of Oncology and Palliative Care North Zealand University Hospital Hillerød Denmark
10. Institute of Clinical Medicine Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark