1. Department of Clinical Laboratory, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Japan
2. Department of Hematology and Rheumatology, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Japan
3. Division of Blood Transfusion and Cell Therapy, Tohoku University Hospital, Sendai, Japan
4. Department of Cardiovascular Surgery, Tohoku Medical and Pharmaceutical University Hospital, Sendai, Japan
5. Department of Blood Transfusion, Tohoku Medical and Pharmaceutical University, Sendai, Japan
6. Division of Laboratory Medicine, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan