1. Department of Infectious Diseases and Applied Immunology, IMSUT Hospital of The Institute of Medical Science, The University of Tokyo, Japan
2. Department of Cell Processing and Transfusion, The Institute of Medical Science, The University of Tokyo, Japan
3. Department of Hematology, Joban Hospital of Tokiwakai Group, Japan
4. Department of Hematology/Oncology, Research Hospital The Institute of Medical Science, The University of Tokyo, Japan
5. Department of Hematology, Teikyo University Chiba Medical Center, Japan