1. Department of Pediatrics; Shinshu University School of Medicine; Matsumoto Japan
2. Department of Hematology/Oncology; Nagano Children's Hospital; Azumino Japan
3. Department of Laboratory Medicine; Shinshu University Hospital; Matsumoto Japan
4. Department of Clinical Application; Center for iPS Cell Research and Application; Kyoto University; Kyoto Japan
5. Shinonoi General Hospital; Minami Nagano Center; Nagano Japan