1. Department of Haematology and Cell Therapy Aichi Cancer Centre Hospital Aichi Japan
2. Haematology, Oncology & Cardiovascular Medicine Kyushu University Hospital Fukuoka Japan
3. Department of Haematopoietic Stem Cell Transplantation National Cancer Centre Hospital Tokyo Japan
4. Division of Haematology, Department of Medicine Keio University School of Medicine Tokyo Japan
5. Department of Haematology and Oncology Anjo Kosei Hospital Anjo Japan
6. Department of Internal Medicine Kitakyushu Municipal Medical Centre Fukuoka Japan
7. Department of Haematology Kobe City Medical Centre General Hospital Kobe Japan
8. Department of Haematology Hiroshima Red Cross Hospital & Atomic‐bomb Survivors Hospital Hiroshima Japan
9. Department of Haematology/Oncology Tokai University School of Medicine Isehara Japan
10. Division of Haematology and Oncology Toyohashi Municipal Hospital Toyohashi Japan
11. Department of Haematology and Oncology, Research Institute for Radiation Biology and Medicine Hiroshima University Hiroshima Japan
12. Department of Oncology and Haematology Shimane University Hospital Izumo Japan