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Taquette SR, de Vilhena MM, de Paula MC.Taquette SR, et al.Cad Saude Publica. 2004 Jan-Feb;20(1):282-90. doi: 10.1590/s0102-311x2004000100046. Epub 2004 Mar 8.Cad Saude Publica. 2004.PMID: 15029331Free article.Portuguese.