1. Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine
2. Department of Orthopaedic Surgery, Yamagata Saisei Hospital
3. Department of Orthopaedic Surgery, Yamagata Prefectural Central Hospital
4. Department of Orthopaedic Surgery, Okitama Public General Hospital
5. Department of Orthopaedic Surgery, Tsuruoka Municipal Shonai Hospital
6. Department of Orthopaedic Surgery, Sagae City Hospital
7. Department of Orthopaedic Surgery, Yamagata Prefectural Kahoku Hospital
8. Department of Orthopaedic Surgery, Shiseido Hospital
9. Department of Orthopaedic Surgery, Sanyudo Hospital
10. Department of Orthopaedic Surgery, Saiseikan Yamagata City Hospital
11. Department of Orthopaedic Surgery, Tohoku Central Hospital
12. Department of Orthopaedic Surgery, Yoshioka Hospital
13. Department of Orthopaedic Surgery, Kitamurayama Hospital
14. Department of Orthopaedic Surgery, Miyuki Social Medical Corporation, Miyukikai Hospital
15. Department of Orthopaedic Surgery, Yamagata Tokusyukai Hospital
16. Department of Orthopaedic Surgery, Yamagata Prefectural Shinjo Hospital
17. Department of Orthopaedic Surgery, Shonai Amarume Hospital
18. Department of Orthopaedic Surgery, Sinoda General Hospital
19. Department of Orthopaedic Surgery, Mamurogawa Town Hospital
20. Department of Orthopaedic Surgery, Nihonkai General Hospital
21. Department of Orthopaedic Surgery, Yonezawa City Hospital
22. Department of Orthopaedic Surgery, Funayama Hospital
23. Department of Cardiology, Pulmonology and Nephrology, Yamagata University Faculty of Medicine