1. Graduate School of Health Sciences Gunma University Gunma Japan
2. Department of Virology and Preventive Medicine Gunma University Graduate School of Medicine Gunma Japan
3. Department of Anatomy and Cell Biology Hyogo College of Medicine Hyogo Japan
4. Laboratory of Molecular Genetics Institute for Molecular and Cellular Regulation Gunma University Gunma Japan
5. Leukemia Research Center Saiseikai Maebashi Hospital Gunma Japan
6. Department of Hematology Gunma University Graduate School of Medicine Gunma Japan
7. Division of Blood Transfusion Service Gunma University Hospital Gunma Japan
8. Oncology Center Gunma University Hospital Gunma Japan