1. Department of Transfusion Medicine, Aichi Medical University, Nagakute, Aichi, Japan
2. Division of Transfusion and Cell Therapy, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
3. Department of Transfusion Medicine, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
4. Department of Transfusion Medicine & Cell Therapy, Keio University, Tokyo, Japan
5. Department of Blood Transfusion, Osaka University Hospital, Osaka, Japan
6. Division of Transfusion Medicine, Shinshu University Hospital, Matsumoto-shi, Nagano-ken, Japan
7. Department of Human Welfare, Shitennoji University, Habikino, Japan
8. Japanese Red Cross Hokkaido Block Blood Center, Sapporo, Japan