[Debate on the paper by Narvai et al].
Portela
Margareth Crisóstomo
MC
Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil. mportela@ensp.fiocruz.br
Vasconcellos
Mauricio Teixeira Leite de
MT
D001938:Brazil; D003625:Data Collection / Q000379:methods / Q000592:standards; D003627:Data Interpretation, Statistical; D016208:Databases, Factual; D003753:Dental Health Surveys; D006801:Humans; D012494:Sampling Studies