1. Department of Medicine and Biosystemic Science Kyushu University Graduate School of Medical Science Fukuoka Japan
2. Department of Hematology Toranomon Hospital Tokyo Japan
3. Department of Hematology Hiroshima Red Cross Hospital and Atomic‐Bomb Survivors Hospital Hiroshima Japan
4. Department of Hematology Toranomon Hospital Kajigaya Kawasaki Japan
5. Departments of Hematology National Hospital Organization, Kyushu Medical Center Fukuoka Japan
6. Department of Hematology Hamanomachi Hospital Fukuoka Japan
7. Division of Hematology and Oncology, Department of Medicine Kurume University School of Medicine Kurume Japan
8. Department of Internal Medicine Matsuyama Red Cross Hospital Matsuyama Japan
9. Department of Hematology Imamura General Hospital Kagoshima Japan
10. Department of Hematology Harasanshin Hospital Fukuoka Japan
11. Department of Hematology Shimane University Hospital Izumo Japan
12. Division of Hematology St. Mary's Hospital Kurume Japan
13. Department of Hematology, Clinical Immunology, and Infectious Diseases Ehime University Graduate School of Medicine Ehime Japan
14. Department of Hematology and Rheumatology Kagoshima University Hospital Kagoshima Japan
15. Department of Hematology Hokkaido University Hospital Sapporo Japan
16. Department of Internal Medicine Miyazaki Prefectural Miyazaki Hospital Miyazaki Japan
17. Department of Hematology Fukuoka Red Cross Hospital Fukuoka Japan
18. Department of Hematology Saga‐Ken Medical Center Koseikan Saga Japan
19. Department of Hematology National Hospital Organization Kyushu Cancer Center Fukuoka Japan
20. Department of Gastroenterology and Hematology, Faculty of Medicine University of Miyazaki Miyazaki Japan
21. Department of Hematology and Oncology JCHO Kyushu Hospital Fukuoka Japan
22. Division of Medical Oncology, Hematology and Infectious Diseases, Faculty of Medicine Fukuoka University Fukuoka Japan
23. Division of Hematology, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences Kanazawa University Kanazawa Japan