Affiliation: | 1. Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China;2. Department of Developmental Dentistry, The University of Texas Health Science Center at San Antonio, San Antonio, Texas;3. Department of Anatomy, Histology & Embryology, Fujian Medial University, Fuzhou, China;4. Department of Periodontics, the University of Texas Health Science Center at San Antonio, Texas;5. Department of Oral/Maxillofacial Surgery, University of Alabama at Birmingham School of Dentistry, Birmingham, Alabama |