[Debate on the paper by Narvai et al].
Freire
Maria do Carmo Matias
Mdo C
Faculdade de Odontologia, Universidade Federal de Goiás, Goiânia, Brazil. mcmfreire@yahoo.com.br
D003625:Data Collection / Q000379:methods / Q000592:standards; D003627:Data Interpretation, Statistical; D003753:Dental Health Surveys; D006801:Humans; D012107:Research Design / Q000592:standards*