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Costa CH, Tapety CM, Werneck GL.Costa CH, et al. Among authors: werneck gl.Rev Soc Bras Med Trop. 2007 Jul-Aug;40(4):415-9. doi: 10.1590/s0037-86822007000400009.Rev Soc Bras Med Trop. 2007.PMID: 17876463Free article.Clinical Trial.Portuguese.