1. Institute of Advanced Clinical Medicine, Kinki University School of Medicine, Osaka, Japan.
2. Department of Genetic Engineering, Graduate School of Biology Oriented Science and Technology, Kinki University, Wakayama, Japan.
3. Department of Orthopaedic Surgery, Kinki University School of Medicine, Osaka, Japan.
4. Department of Rehabilitation Medicine, Kinki University School of Medicine, Osaka, Japan.