1. Transfusion and Cell Therapy Hamamatsu University School of Medicine Hamamatsu Japan
2. Department of Blood Transfusion and Transplantation Immunology Fukushima Medical University Fukushima Japan
3. Blood Service Headquarters Japanese Red Cross Society Minato‐ku Japan
4. Division of Transfusion Medicine Fukuoka University Fukuoka Japan
5. Department of Blood Transfusion Medicine and Cell Therapy Kagoshima University Kagoshima Japan
6. Blood Transfusion & Cell Therapy Kansai Medical University Moriguchi Japan
7. Division of Blood Transfusion Toho University Ota‐ku Japan
8. Department of Transfusion and Cell Therapy University of Miyazaki Miyazaki Japan
9. Division of Central Clinical Laboratory Iwate Medical University Morioka Japan
10. Division of Blood Transfusion Niigata University Niigata Japan
11. Department of Transfusion Medicine Aichi Medical University Aichi‐gun Japan
12. Department of Clinical Laboratory Nagano Municipal Hospital Nagano Japan
13. Division of Transfusion Medicine Osaka Medical College Takatsuki Japan
14. Division of Medical Technology and Department of Blood Transfusion Service Tokai University Isehara Japan
15. Division of Clinical Laboratory, Transfusion Medicine and Cell Therapy University of Toyama Toyama Japan
16. Transfusion and Cell Therapy Unit Nagasaki University Nagasaki Japan
17. Division of Blood Transfusion Akita University Akita Japan
18. Department of Transfusion Medicine University of Tsukuba Tsukuba Japan
19. Center for Transfusion Medicine and Cell Therapy Tokyo Medical and Dental University Bunkyo‐ku Japan
20. Department of Transfusion Medicine Saga University Saga Japan
21. Division of Cell Transplantation and Transfusion Jichi Medical University Shimotsuke Japan
22. Department of Transfusion Medicine Nagoya University Nagoya Japan