Affiliation: | 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 |