1. Department of Hematology, Niigata University Graduate School of Medical and Dental Sciences, Japan
2. Department of Hematology, Niigata City General Hospital, Japan
3. Department of Stem Cell Transplantation, Niigata University Medical and Dental General Hospital, Japan
4. Department of Endocrinology, Niigata City General Hospital, Japan
5. Usami Clinic, Japan
6. Bioscience Medical Research Center, Niigata University Medical and Dental General Hospital, Japan