1. Department of Hematology, Juntendo University Urayasu Hospital, Urayasu-shi, Japan,
2. Department of Hematology, Juntendo University Hospital, Bunkyo-ku, Japan,
3. Department of Pathology, Juntendo University Urayasu Hospital, Urayasu-shi, Japan,
4. Department of Cardiology, Juntendo University Urayasu Hospital, Urayasu-shi, Japan,
5. Department of Transfusion Medicine, Juntendo University Urayasu Hospital, Urayasu-shi, Japan,
6. Department of Laboratory Medicine, Juntendo University Urayasu Hospital, Urayasu-shi, Japan,
7. Department of Internal Medicine, Tokyo Dental University Ichikawa General Hospital, Ichikawa-shi, Japan