1. Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
2. Department of Orthopedics and Rehabilitation Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
3. Department of Biomedical Sciences, Graduate School of Life and Health Sciences, Chubu University College of Life and Health Sciences, Aichi Japan
4. Teijin Nakashima Medical Co., Ltd, Okayama, Japan