1. Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark;
2. Department of Orthopaedic Surgery, Rigshospitalet, University of Copenhagen, Denmark Copenhagen;
3. Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark;
4. Department of Pathology, Aarhus University Hospital, Aarhus, Denmark;
5. Department of Oncology, Aarhus University Hospital, Aarhus, Denmark;
6. The Research Unit of General Practice, Aarhus University, Aarhus, Denmark;
7. Department of Clinical Medicine, Silkeborg Hospital, Aarhus University, Aarhus, Denmark