1. Department of Medical Oncology National Cancer Institute of Milan Milan Italy
2. Leon Berard Center Claude Bernard University Lyon 1, UNICANCER Hospital Network Lyon France
3. Department of Radiation Oncology Dana‐Farber/Brigham and Women's Cancer Center Boston Massachusetts
4. Department of Surgical Oncology Curie Institute, University of Paris–Sciences and Letters Paris France
5. Department of Pathology Leiden University Medical Center Leiden Netherlands
6. Department of Surgery National Cancer Institute of Milan Milan Italy
7. Taiwan Cancer Registry Center Taipei Taiwan
8. Institute of Epidemiology and Preventive Medicine College of Public Health National Taiwan University Taipei Taiwan
9. Department of Medical Oncology Ludwig Center at Harvard Medical SchoolDana‐Farber Cancer Institute Boston Massachusetts
10. Department of Pathobiology and Laboratory Medicine University of Toronto/Mount Sinai Hospital Toronto Ontario Canada
11. Department of Medical Oncology Peter MacCallum Cancer Center Melbourne Victoria Australia
12. Department of Oncology Skane University Hospital and Lund University Lund Sweden
13. Department of Medical Oncology Leiden University Medical Center Leiden Netherlands
14. Department of Medicine Memorial Sloan Kettering Cancer Center New York New York
15. Weill Cornell Medical College New York New York
16. Division of Hematology/Oncology The Hospital for Sick Children Toronto Ontario Canada
17. Princess Margaret Cancer Center Toronto Ontario Canada
18. Department of Radiotherapy Netherlands Cancer Institute Amsterdam Netherlands
19. Department of Radiotherapy Leiden University Medical Center Amsterdam Netherlands
20. Department of Surgery the Royal Marsden National Health Service Foundation Trust London United Kingdom
21. Sarcoma Unit, Mannheim University Medical Center University of Heidelberg Mannheim Germany
22. Department of Orthopedics University of Utah Salt Lake City Utah
23. Sarcoma Unit Royal Marsden NHS Foundation Trust/Institute of Cancer Research London UK
24. Department of Musculoskeletal Oncology National Cancer Center Hospital Tokyo Japan
25. Department of Radiation Oncology Duke University Medical Center Durham North Carolina
26. Division of Pediatrics The University of Texas MD Anderson Cancer Center Houston Texas
27. Medical Oncology Gustave Roussy Institute Villejuif, Ile‐de‐France France
28. Division of Cancer Registration and Surveillance National Cancer Center, Ilsandong‐gu Goyang‐si Republic of Korea
29. Department of Epidemiology, Regional Health Council, Biomedical Research Institute of Murcia‐Arrixaca Murcia University Murcia Spain
30. Unit of Oncogenetics and Functional Oncogenomics Aviano IRCCS Oncology Referral Center Aviano Italy
31. Epidemiology Unit and Girona Cancer Registry, Oncology Coordination Plan Department of Health Autonomous Government of Catalonia Catalan Institute of Oncology Girona Spain
32. Medical Oncology Department University Hospital Virgen del Rocio Sevilla Spain
33. National Cancer Registry Section, Center for Cancer Registries, Center for Cancer Control and Information Services, National Cancer Center Tokyo Japan
34. Department of Sarcoma Medical Oncology The University of Texas MD Anderson Cancer Center Houston Texas
35. Department of Surgery Brigham and Women's Hospital Boston Massachusetts
36. Center for Sarcoma and Bone Oncology Dana‐Farber Cancer Institute Harvard Medical School Boston Massachusetts
37. Department of Interdisciplinary Cancer Management Moffitt Cancer Center Tampa Florida
38. Department of Soft Tissue/Bone Sarcoma and Melanoma Maria Sklodowska‐Curie National Research Institute of Oncology Warsaw Poland
39. Department of Pathology University Hospital of Padova Padova Italy
40. Department of Pathology Brigham and Women's HospitalHarvard Medical School Boston Massachusetts
41. Department of Oncology the Norwegian Radium HospitalOslo University Hospital Oslo Norway
42. Garvan Institute of Medical Research Sydney New South Wales Australia
43. Department of Medical Oncology Netherlands Cancer Institute Amsterdam Amsterdam Netherlands
44. Department of Surgical Oncology Netherlands Cancer Institute Amsterdam Netherlands
45. Department of Registration Netherlands Comprehensive Cancer Organization Utrecht Netherlands
46. Department of Hematology and Medical Oncology Fox Chase Cancer Center Philadelphia Pennsylvania
47. Department of Medicine University of Colorado Cancer Center Aurora Colorado
48. Evaluative Epidemiology Unit Department of Research National Cancer Institute of Milan Milan Italy