1. Division of Pediatric Dentistry; Department of Oral Health and Development Sciences; Sendai Japan
2. Liaison Center for Innovative Dentistry; Tohoku University Graduate School of Dentistry; Sendai Japan
3. Unit of Basic Medical Sciences; Department of Cell Biology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
4. Division of Orthopedic Research Surgery; The Children's Hospital of Philadelphia; Philadelphia Pennsylvania