[1] Guangxi Med Univ, Affiliated Hosp 2, Dept Dermatol & Venerol, Nanning, Peoples R China
[2] Guangxi Med Univ, Hosp Stomatol, Coll Stomatol, Guangxi Clin Res Ctr Craniofacial Deform, Nanning, Peoples R China
[3] South China Univ Technol, Guangzhou, Peoples R China
[4] Youjiang Med Univ Nationalities, Affiliated Hosp, Baise, Peoples R China