| Affiliation: | 1. Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University Baylor College of Dentistry, Dallas, Texas;2. Department of Endodontics, The Institute of Hard Tissue Development and Regeneration, the 2nd Affiliated Hospital of Harbin Medical University, Harbin, China;3. Department of Periodontics, Harbin Medical University School of Stomatology, Harbin, China;4. Department of Pediatric Dentistry, Dental School, The University of Texas Health Science Center at San Antonio, San Antonio, Texas |
