1. Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan;
2. Department of Hematology and Oncology, Children’s Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan;
3. Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan;
4. Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan;
5. Department of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan;
6. Department of Hematology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan;
7. Department of Hematology, Kanagawa Cancer Center, Yokohama, Japan;
8. Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan;
9. Department of Hematology, Toranomon Hospital, Tokyo, Japan;
10. Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan;
11. Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan;
12. Division of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan;
13. Hematology, Graduate School of Medicine, Osaka City University, Osaka, Japan;
14. Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan;
15. Japanese Data Center for Hematopoietic Cell Transplantation, Nagoya, Japan;
16. Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan; and
17. Department of Hematology, Hokkaido University Faculty of Medicine, Sapporo, Japan