1. Department of Legal MedicineGunma University Graduate School of Medicine Maebashi Japan
2. Transfusion ServiceGunma University Hospital Maebashi Japan
3. Department of HematologyGunma University Graduate School of Medicine Maebashi Japan
4. Department of HematologyUniversity of Occupational and Environmental Health Kitakyushu Japan
5. Department of Legal MedicineShimane University School of Medicine Izumo Japan
6. Japanese Red Cross Central Blood Institute Tokyo Japan