1. Division of Genetics; National Cancer Center Research Institute; Tokyo; Japan
2. Department of Molecular Diagnostics and Therapeutics; Kyoto Prefectural University of Medicine Graduate School of Medical Science; Kyoto; Japan
3. Department of Hematology/Oncology; Gunma Children's Medical Center; Shibukawa; Japan
4. Department of Pediatrics; Gunma University Graduate School of Medicine; Maebashi; Japan
5. Department of Pediatrics; Okayama University Graduate School of Medicine; Okayama; Japan
6. Department of Human Health Sciences; Kyoto University Graduate School of Medicine; Kyoto; Japan
7. Department of Pediatrics; National Hospital Organization Osaka National Hospital; Osaka; Japan
8. Clinical Research Center; National Hospital Organization Nagoya Medical Center; Nagoya; Japan
9. Department of Pediatrics; Ibaraki Children's Hospital; Ibaraki; Japan
10. Division of Hematology/Oncology; Saitama Children's Medical Center; Saitama; Japan
11. Department of First Pediatrics; Toho University School of Medicine; Tokyo; Japan