| Affiliation: | 1. Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan;2. Department of Orthopedic Surgery, The University of Tokyo Hospital, Tokyo, Japan;3. Department of Orthopedic Surgery, Okayama University, Okayama, Japan;4. Department of Health Economics and Epidemiology Research, School of Public Health, The University of Tokyo, Tokyo, Japan;5. Department of Orthopedic Surgery, Korea Cancer Center Hospital, Seoul, Korea;6. Department of Orthopedic Surgery, Hokkaido Cancer Center, Hokkaido, Japan;7. Department of Orthopedic Surgery, Chiba Cancer Center, Chiba, Japan;8. Department of Orthopedic Surgery, Nagoya University, Aichi, Japan;9. Department of Orthopedic Surgery, Keio University, Tokyo, Japan;10. Department of Orthopedic Surgery, Kanagawa Cancer Center, Kanagawa, Japan;11. Department of Orthopedic Surgery, Osaka National Hospital, Osaka, Japan |
