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Afonso MM, Costa WA, Azevedo AC, Costa SM, Vilela ML, Rangel EF.Afonso MM, et al. Among authors: azevedo ac.Cad Saude Publica. 2007 Mar;23(3):725-30. doi: 10.1590/s0102-311x2007000300030.Cad Saude Publica. 2007.PMID: 17334585Free article.