1. Department of Orthopaedic Surgery The University of Tokyo Hospital Tokyo Japan
2. Division of Orthopedic Surgery National Cancer Center Hospital Tokyo Japan
3. Department of Musculoskeletal Oncology Service Osaka International Cancer Institute Osaka Japan
4. Department of Orthopedic Surgical Oncology Cancer Institute HospitalJapanese Foundation for Cancer Research Tokyo Japan
5. Division of Orthopedic Surgery Chiba Cancer Center Chiba Japan
6. Department of Orthopedic Surgery Shizuoka Cancer Center Hospital Shizuoka Japan
7. Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical and Research Center, Faculty of Medicine The University of Tokyo Hospital Tokyo Japan
8. Department of Orthopedic Surgery National Hospital Organization Osaka National Hospital Osaka Japan