1. Department of Hematopoietic Stem Cell Transplantation National Cancer Center Hospital Tokyo Japan
2. Department of Hematology Nippon Medical School Tokyo Japan
3. Children's Cancer Center National Center for Child Health and Development Tokyo Japan
4. Department of Hematology Imamura General Hospital Kagoshima Japan
5. Department of Hematology Toranomon Hospital Tokyo Japan
6. Hematology Division Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital Tokyo Japan
7. Department of Hematology Hyogo Medical University Hospital Nishinomiya Japan
8. Department of Hematology Hiroshima Red Cross Hospital & Atomic‐Bomb Survivors Hospital Hiroshima Japan
9. Department of Hematology and Oncology Anjo Kosei Hospital Anjo Japan
10. Department of Hematology Hamanomachi Hospital Fukuoka Japan
11. Department of Hematology Kobe City Medical Center General Hospital Kobe Japan
12. Department of Hematology Sapporo Hokuyu Hospital Sapporo Japan
13. Department of Hematology Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital Nagoya Japan
14. Division of Hematology, Department of Internal Medicine Keio University School of Medicine Tokyo Japan
15. Division of Molecular Oncology National Cancer Center Research Institute Tokyo Japan
16. Division of Hematology Jichi Medical University Saitama Medical Center Saitama Japan
17. Department of Pediatrics Graduate School of Medicine, Chiba University Chiba Japan
18. Preparation Department Japanese Red Cross Kinki Block Blood Center Osaka Japan
19. Japanese Data Center for Hematopoietic Cell Transplantation Nagakute Japan
20. Department of Registry Science for Transplant and Cellular Therapy Aichi Medical University School of Medicine Nagakute Japan
21. Department of Hematology and Oncology Kurume University School of Medicine Kurume Japan