1. EORTC Headquarters, Brussels, Belgium
2. Department of Medical Oncology, Leiden University Medical Center, Leiden, Netherlands
3. Mathematical Institute Leiden University, Leiden, Netherlands
4. Division of Clinical Studies, Institute of Cancer Research, London, UK
5. Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, Netherlands
6. Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
7. Department of Medical Oncology, Institut Bergonié, Bordeaux, France
8. Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
9. Department of Radiology, The Royal Marsden Hospital, The Institute of Cancer Research, Sutton, UK
10. Sarcoma Unit, Mannheim University Medical Center, Mannheim Cancer Center (MCC), University of Heidelberg, Mannheim, Germany