1. Department of Orthopaedics and Rehabilitation Medicine, University of Fukui Faculty of Medical Sciences, Fukui, Japan.
2. Laboratory of Physiology, University of South China, Hengyang, People's Republic of China.
3. Institute for Science & Technology in Medicine, Keele University at the RJAH Orthopaedic Hospital, Oswestry, Shropshire, United Kingdom.
4. Life & Health Sciences, Aston University, Aston Triangle, Birmingham, United Kingdom.