1. Third Department of Internal Medicine, Yamaguchi University Hospital, Japan
2. Division of Blood Transfusion, Yamaguchi University Hospital, Japan
3. Division of Hematology and Diabetes, Nagato General Hospital, Japan
4. Department of Hematology, Shuto General Hospital, Japan
5. Department of Hematology and Clinical Oncology, Shinshu University School of Medicine, Japan
6. Department of Biomedical Laboratory Sciences, Shinshu University School of Medicine, Japan
7. Department of Laboratory Science, Yamaguchi University Graduate School of Medicine, Japan