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Pedroso RS, da Costa KR, Ferreira JC, Candido RC.Pedroso RS, et al.Rev Soc Bras Med Trop. 2007 Sep-Oct;40(5):566-8. doi: 10.1590/s0037-86822007000500014.Rev Soc Bras Med Trop. 2007.PMID: 17992414Free article.Portuguese.