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Nunes LN, Klück MM, Fachel JM.Nunes LN, et al. Among authors: fachel jm.Rev Bras Epidemiol. 2010 Dec;13(4):596-606. doi: 10.1590/s1415-790x2010000400005.Rev Bras Epidemiol. 2010.PMID: 21180849Free article.Portuguese.