1. Department of Hematology and Oncology; Suzuka General Hospital; Suzuka Mie Prefecture Japan
2. Department of Hematology and Oncology; Mie University Graduate School of Medicine; Tsu Mie Prefecture Japan
3. Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society; Tokyo Japan
4. Blood Transfusion Service, Mie University Hospital; Tsu Mie Prefecture Japan