1. Children's Cancer Center; National Center for Child Health and Development
2. Department of Pediatrics; St. Marianna University School of Medicine
3. Department of Pediatrics; Hiroshima Red Cross Hospital & Atomic-Bomb Survivors Hospital
4. Clinical Research Center; National Hospital Organization Nagoya Medical Center
5. Department of Pathology; National Center for Child Health and Development
6. Department of Pediatrics; Ama City Hospital
7. Department of Pediatrics; Sapporo Hokuyu Hospital