1. Sarcoma Center of Aarhus University Hospital, Aarhus C, Denmark
2. Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus C, Denmark
3. The Research Unit for General Practice, Research Center for Cancer Diagnosis, Aarhus University, Aarhus C, Denmark
4. Department of Oncology, Sarcoma Center of Aarhus University Hospital, Aarhus C, Denmark
5. Department of Orthopedics, Sarcoma Center of Aarhus University Hospital, Aarhus C, Denmark