1. Department of Biological Sciences, University of Delaware, Newark, DE, USA
2. Department of Skeletal Dysplasia, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA
3. Department of Cell Transplantation and Regenerative Medicine, Tokai University School of Medicine, Isehara, Japan
4. Medical Education Development Center, Gifu University, Gifu, Japan
5. Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan