title: Statistical treatment of the sample.
authors: Lufei
authors: L
authors: Wang
authors: Yating
authors: Y
authors: Yi
authors: Ding
authors: D
authors: Bai
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000523:psychology*; D009909:Oral Health; D009971:Orthodontics, Corrective / Q000523:psychology*; D011788:Quality of Life