1. Department of Orthopaedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
2. Department of Pathology, National Defense Medical College, Tokorozawa, Saitama, Japan
3. Division of Gene Therapy Science, Osaka University Medical School, Suita, Osaka, Japan
4. Division of Environmental Medicine, National Defense Medical College Research Institute, Tokorozawa, Saitama, Japan