1. Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama; Japan
2. Division of Clinical Oncology and Hematology; Department of Internal Medicine; Jikei University School of Medicine; Tokyo; Japan
3. Department of HSCT Data Management/Biostatistics; Nagoya University Graduate School of Medicine; Nagoya; Japan
4. Department of Hematology and Oncology; Shimane Prefectural Central Hospital; Shimane; Japan
5. Division of Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo; Japan
6. Hematology Division; Tokyo Metropolitan Cancer and Infectious Disease Center; Komagome Hospital; Tokyo; Japan
7. Department of Hematology; Meitetsu Hospital; Nagoya; Japan
8. Third Department of Internal Medicine; Yamaguchi University School of Medicine; Yamaguchi; Japan
9. Department of Hematology; Toranomon Hospital; Tokyo; Japan
10. Department of Hematology; Atomic Bomb Disease Institute; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki; Japan
11. Division of Epidemiology and Prevention; Aichi Cancer Center Research Institute; Nagoya; Japan
12. Department of Cell Processing and Transfusion; Institute of Medical Science; University of Tokyo; Tokyo; Japan
13. Division of Hematology; Department of Medicine; Keio University School of Medicine; Tokyo; Japan
14. Department of Hematology and Oncology; Nagoya University Graduate School of Medicine; Nagoya; Japan