1. Department of Hematology Nippon Medical School Tokyo Japan
2. Department of Hematology Yokohama Minami Kyousai Hospital Kanagawa Japan
3. Department of Hematology NTT Medical Center Tokyo Tokyo Japan
4. Division of Hematology and Oncology Kyoto Prefectural University of Medicine Kyoto Japan
5. Department of Hematology Japanese Red Cross, Kyoto Daini Hospital Kyoto Japan
6. Department of Hematology Japanese Red Cross Kyoto Daiichi Hospital Kyoto Japan
7. Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine Faculty of Medicine, Saga University Saga Japan
8. Hemato‐Oncology Department St Luke's International Hospital Tokyo Japan
9. ARKRAY, Inc. Kyoto Japan