1. Research and Development Department, Central Blood Institute; Blood Service Headquarters, Japanese Red Cross Society; Tokyo Japan
2. Department of Transfusion Medicine; The University of Tokyo; Tokyo Japan
3. Department of Neurosurgery; The University of Tokyo; Tokyo Japan
4. Department of Anesthesiology; School of Dentistry; Showa University; Showa Japan
5. Department of Respiratory Medicine; The University of Tokyo; Tokyo Japan
6. Blood Group Section; Japanese Red Cross Kanto-Koshinetsu Block Blood Center; Tokyo Japan
7. Department of Pediatric Hematology and Oncology Research; National Research Institute for Child Health and Development; Tokyo Japan
8. Clinical Research Center; National Center for Child Health and Development; Tokyo Japan