1. Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
2. Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
3. Universitätsklinikum Düsseldorf, Düsseldorf, Germany
4. Helios Kliniken Berlin-Buch, Berlin, Germany
5. Charité-Universitätsmedizin Berlin, Berlin, Germany
6. Mannheim University Medical Center, Mannheim, Germany
7. Department of General, Visceral, Transplantation, Vascular, and Thoracic Surgery, University Hospital, LMU Munich, Munich, Germany
8. Radiation Oncology, University of Maryland, Baltimore, United States
9. Department of Pathology, Rigshospitalet, Copenhagen, Denmark
10. Haukeland University Hospital, Bergen, Norway
11. Institute of Medical Informatics, Biometry, and Epidemiology (IBE), LMU Munich, Munich, Germany
12. Musculoskeletal Oncology, Department of Orthopaedic Surgery, Physical Medicine and Rehabilitation, University Hospital, LMU Munich, Munich, Germany
13. Institute of Pathology, LMU Munich, Munich, Germany
14. Munich Cancer Registry (MCR), Munich Tumour Centre (TZM), Department of Medical Informatics, Biometry and Epidemiology (IBE), Klinikum Großhadern, Ludwig-Maximilians-University (LMU), Munich, Germany
15. Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
16. Department of Surgery, Fondazione IRCCS Instituto Nazionale dei Tumori, Milan, Italy