1. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Massachusetts General Hospital Cancer Center Harvard Medical School Boston Massachusetts USA
2. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Hospital Italiano Buenos Aires Argentina
3. Department of Orthopedic Surgery Massachusetts General Hospital Harvard Medical School Boston Massachusetts USA
4. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Boston Children's Hospital Beth Israel Deaconess Medical Center Dana‐Farber Cancer Center Harvard Medical School Boston Massachusetts USA
5. Musculoskeletal Oncology Service, Department of Orthopedic Surgery The Johns Hopkins Hospital Johns Hopkins University Baltimore Maryland USA
6. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Instituto Nacional de Cancerología Bogotá Colombia
7. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Brigham and Women's Hospital Dana‐Farber Cancer Center Harvard Medical School Boston Massachusetts USA
8. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Hospital Universitario San Ignacio Pontificia Universidad Javeriana Bogotá Colombia
9. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Hospital Universitario La Paz Madrid Spain
10. Division of Sarcoma and Connective Tissue Oncology Department of Hematology and Oncology Massachusetts General Hospital Cancer Center Harvard Medical School Boston Massachusetts USA
11. Division of Bone and Soft Tissue Pathology, Department of Pathology Massachusetts General Hospital Cancer Center Harvard Medical School Boston Massachusetts USA
12. Musculoskeletal Oncology Service, Department of Orthopedic Surgery Royal Orthopedic Hospital National Health Service Trust Aston University Birmingham UK