1. Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Hokkaido
2. Graduate School of Global and Transdisciplinary Studies College of Liberal Arts and Sciences, Chiba University, Chiba, Chiba
3. Department of Orthopedic Surgery, St Luke’s International Hospital, Akashicho, Chuo-ku, Tokyo
4. Department of Sports Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Okayama
5. Japan Community Health care Organization (JCHO) Kurume General Hospital, Kurume, Fukuoka
6. Department of Physical Therapy, Sapporo Medical University School of Health Sciences, Sapporo, Hokkaido