1. Transfusion and Cell Therapy Unit Nagasaki University Hospital Nagasaki Japan
2. Department of Clinical Laboratory Nagasaki Goto Chuoh Hospital Goto Japan
3. Japan Red Cross Nagasaki Blood Center Nagasaki Japan
4. Department of Internal Medicine Nagasaki Goto Chuoh Hospital Goto Japan
5. Department of Hematology NHO Nagasaki Medical Center Ohmura Japan
6. Department of Hematology Atomic Bomb Disease and Hibakusha Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University Nagasaki Japan
7. Department of Laboratory Medicine Tokyo Medical University Hachioji Medical Center Tokyo Japan