1. Japan Society of Blood Transfusion and Cell Therapy Tokyo Japan
2. Department of Transfusion and Cell Therapy Medicine Hirosaki University Post‐Graduate School of Medicine Hirosaki Japan
3. Department of Blood Transfusion and Transplantation Immunology Fukushima Medical University Fukushima Japan
4. Department of Medical Technology Fukushima Prefectural Hygiene Institute Fukushima Japan
5. Department of Transfusion and Cell Therapy Hamamatsu University School of Medicine Hamamatsu Japan
6. Division of Blood Transfusion Okayama University Hospital Okayama Japan
7. Transfusion Laboratory Tokyo Metropolitan Children's Medical Center Tokyo Japan
8. Division of Blood Transfusion and Cell Therapy Ehime University Hospital Toon Japan
9. Blood Transfusion Department Dokkyo Medical University Hospital Shimotsuga‐gun Japan
10. Division of Transfusion Medicine Iwate Medical University Hospital Morioka Japan
11. Division of Blood Transfusion Service Gunma University Hospital Maebashi Japan
12. Department of Transfusion Medicine and Cell Therapy The Jikei University Hospital Tokyo Japan
13. Department of Transfusion Medicine and Cell Therapy Kansai Medical University Hospital Hirakata Japan
14. Division of Transfusion Medicine Fukuoka University Hospital Fukuoka Japan
15. Transfusion and Hemapheresis Center Kurashiki Central Hospital Kurashiki Japan
16. Department of Pathology The University of Michigan Ann Arbor Michigan USA
17. Division of Clinical Laboratory and Department of Clinical Genetics Aomori Prefectural Central Hospital Aomori Japan