1. Department of Clinical Laboratory Medicine and Department of Transfusion Medicine Tokyo Medical University Hachioji Medical Center Tokyo Japan
2. Department of Transfusion Medicine Tokyo Metropolitan Bokutoh Hospital Tokyo Japan
3. TOTUS Home Care Clinic Hemato‐Homecare Network Tokyo Japan
4. Tsujikawa Home Clinic Saitama Japan
5. Iwata Home Care Clinic Shizuoka Japan
6. Nishiosu Ito Internal Medicine and Department of Hematology Hemato‐Homecare Network Aichi Japan
7. Sendai Home Care Clinic Miyagi Japan
8. Donated Blood Distribution Foundation Tokyo Japan
9. Division of Blood Transfusion Toho University Omori Medical Center Tokyo Japan
10. Department of Clinical Laboratory Science School of Medical Technology, Health Sciences University of Hokkaido Hokkaido Japan
11. Department of Transfusion Medicine and Cell Therapy Kumamoto University Hospital Kumamoto Japan
12. Division of Clinical Laboratory Aomori Prefectural Central Hospital Aomori Japan
13. Department of Laboratory Medicine Saga University Hospital Saga Japan
14. Transfusion and Cell Therapy Unit Nagasaki University Hospital Nagasaki Japan
15. Division of Transfusion Medicine and Cell Transplantation Saitama Medical University International Medical Center Saitama Japan
16. Japanese Red Cross Fukuoka Blood Center Fukuoka Japan
17. Department of Transfusion Medicine The Jikei University Daisan Hospital Tokyo Japan
18. Blood Service Headquarters Japanese Red Cross Society Tokyo Japan