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Peres SO, Heilborn ML.Peres SO, et al. Among authors: heilborn ml.Cad Saude Publica. 2006 Jul;22(7):1411-20. doi: 10.1590/s0102-311x2006000700006. Epub 2006 Jun 14.Cad Saude Publica. 2006.PMID: 16791341Free article.Portuguese.