1. Faculty of Health Sciences & Medicine, University of Lucerne, Frohburgstrasse 3, 6002 Luzern, Switzerland
2. Sarcoma Service, Department of Orthopedics and Trauma, Sarcoma Center, LUKS University Hospital, 6000 Lucerne, Switzerland
3. Medical Faculty, University of Zurich, 8032 Zurich, Switzerland
4. Lucerne University of Applied Sciences and Arts/HSLU, Werftestrasse 4, 6002 Luzern, Switzerland
5. Sarcoma Service, Klinik für Orthopädie und Traumatologie, Sarcoma Center, Kantonsspital Winterthur, 8400 Winterthur, Switzerland