title: I wish to express my concern about the methods described in the paper by Lo et al. (2000) and the standards of data analysis in that paper.
authors: Z J
authors: ZJ
authors: Nugent
mesh_terms: D000293:Adolescent; D002648:Child; D002651:Child Advocacy; D002681:China; D004245:DMF Index; D004493:Education; D004990:Ethics, Dental; D005006:Ethnicity; D006806:Human Rights; D006801:Humans; D012107:Research Design; D018609:Tibet / Q000208:ethnology