| Affiliation: | ? Graduate Student, Department of Orthodontics, West China Stomatology Hospital of Sichuan University, State Key Laboratory of Oral Diseases (Sichuan University), Chengdu, Sichuan, P.R. China;† Graduate Student, Department of Orthodontics, West China Stomatology Hospital of Sichuan University, Chengdu, Sichuan, P.R. China;‡ Lecturer, Department of Orthodontics, College of Stomatology, Guangxi Medical University, Nanning, Guangxi, P.R. China;§ Lecturer, Department of Orthodontics, College of Stomatology, Shandong University, Jinan, Shandong, P.R. China;‖ Professor and Chair, State Key Laboratory of Oral Diseases (Sichuan University), Department of Orthodontics, West China Stomatology Hospital of Sichuan University, Chengdu, Sichuan, P.R. China |
