1. Department of Orthopaedic Surgery, International University of Health and Welfare Hospital
2. Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
3. Department of Orthopaedic Surgery, Nippon Medical School
4. Faculty of Science & Engineering, Toyo University
5. Department of Mechanical Engineering Informatics, Meiji University
6. Department of Industrial Systems Engineering, Mechanical System Design Course, National Institute of Technology (KOSEN), Hachinohe College