[1] Cent South Univ, Xiangya Hosp, Dept Oral Med, Changsha, Hunan, Peoples R China
[2] Cent South Univ, Xiangya Hosp, Dept Oral & Maxillofacial Surg, Changsha 410011, Hunan, Peoples R China
[3] Shanghai Jiao Tong Univ, Shanghai Key Lab Stomatol,Sch Med, Natl Clin Res Ctr Oral Dis,Shanghai Peoples Hosp, Dept Oral & Maxillofacial Head & Neck Oncol,Coll, Shanghai, Peoples R China
[4] Shanghai Res Inst Stomatol, Shanghai, Peoples R China