Affiliation: | 1. State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, , Chengdu, 610044 PR China;2. Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, , Chengdu, 610041 PR China;3. The Affiliated Hospital of Stomatology, Chongqing Medical University, , Chongqing, 401147 PR China |