1. Department of Hematology, Nagasaki University Hospital
2. Department of Hematology, Atomic Bomb Disease and Hibakusha Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University
3. Department of Second Pathology, University of Occupational and Environmental Health
4. Nagasaki Red Cross Blood Center
5. The Japanese Red Cross, Blood Service Headquarters, Central Blood Institute
6. Transfusion and Cell Therapy Unit, Nagasaki University Hospital