WANG Tao; SHAO Ping; MA Wei; YAN Wei-jun. Department of Orthodontics; The College of Stomatology; Harbin Medical University; Harbin 150001; China.;

• 哈尔滨医科大学口腔医学院正畸科;哈尔滨医科大学附属第四医院口腔科;黑龙江哈尔滨;