Affiliation: | ∗ Department of Surgical Sciences, University of Bergen Faculty of Medicine, Bergen, Norway and Department of Oncology, Haukeland University Hospital, Bergen, Norway † Cancer Clinic, Norwegian Radium Hospital, Oslo University Hospital and University of Oslo Faculty Division, Clinical Medicine, Oslo, Norway ‡ Department of Oncology, Skåne University Hospital, Lund, Sweden § Department of Oncology, Uppsala University Hospital, Uppsala, Sweden ¶ Department of Oncology, Karolinska Hospital, Stockholm, Sweden ‖ Departments of Oncology and of Orthopedics, Haukeland University Hospital, Bergen, Norway # Cancer Clinic, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway |