1. Division of Blood Transfusion, Tohoku University Hospital
2. Department of Rheumatology and Hematology, Tohoku University School of Medicine
3. Department of Pediatrics, Tohoku University School of Medicine
4. Department of Urology, Tohoku University School of Medicine
5. Department of Clinical Oncology, Tohoku University School of Medicine
6. Department of Pediatric Oncology, Tohoku University School of Medicine