1. Musculoskeletal Tumor Section, Department of Orthopedic Surgery, Rigshospitalet University of Copenhagen Copenhagen Denmark
2. Institute of Clinical Research University of Southern Denmark Odense Denmark
3. Odense University Hospital Odense Denmark
4. Department of Oncology, Herlev Gentofte Hospital University of Copenhagen Copenhagen Denmark
5. Department of Clinical Medicine, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark