1. Department of Hematology, Tama-Hokubu Medical Center, Tokyo Metropolitan Health and Medical Treatment Corporation, Tokyo, Japan
2. Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan
3. Department of Laboratory Medicine, Tama-Hokubu Medical Center, Tokyo Metropolitan Health and Medical Treatment Corporation, Tokyo, Japan
4. Department of Transfusion Medicine and Cell Therapy, The Jikei University Hospital, Tokyo, Japan