| Affiliation: | 1. Department of Public Health, Osaka City University Faculty of Medicine, Osaka, Japan;2. Department of Orthopaedic Surgery, Kyushu Rosai Hospital of Japan Labor Health and Welfare Organization, Kitakyushu, Japan;3. Orthopaedic Division, Nakajo Central Hospital, Tainai, Japan;4. Department of Orthopedic Surgery, Kitasato University School of Medicine, Sagamihara, Japan;5. Department of Orthopaedic Surgery, Kanazawa Medical University, Kahokugun, Japan;6. Department of Orthopedics, Mitsuwadai General Hospital, Chiba, Japan;7. Department of Orthopaedic Surgery, Nagasaki University Graduate School of Medicine, Nagasaki, Japan;8. Department of Orthopaedic Surgery, Japan Community Health Care Organization Yugawara Hospital, Ashigarashimogun, Japan;9. Department of Orthopaedic Surgery, Fujita Health University School of Medicine, Toyoake, Japan;10. Department of Orthopaedic Surgery, Hiroshima Prefectural Rehabilitation Center, Higashihiroshima, Japan;11. Department of Orthopaedic Surgery, Asahikawa Medical University, Asahikawa, Japan;12. Department of Bone and Joint Surgery, Seirei Hamamatsu General Hospital, Hamamatsu, Japan;13. Department of Orthopaedic Surgery, Okinawa Red Cross Hospital, Naha, Japan;14. Tohoku Hip Joint Centre, Matsuda Hospital, Sendai, Japan;15. Department of Orthopedic Surgery, Saiseikai Nakatsu Hospital, Osaka, Japan;16. Department of Orthopaedic Surgery, Osaka City University Faculty of Medicine, Osaka, Japan;17. College of Health Care Management, Miyama, Japan |
