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Couto CA, Bittencourt PL, Farias AQ, Lallee MP, Cançado EL, Massarollo PC, Mies S.Couto CA, et al.Rev Inst Med Trop Sao Paulo. 2001 Nov-Dec;43(6):335-7. doi: 10.1590/s0036-46652001000600007.Rev Inst Med Trop Sao Paulo. 2001.PMID: 11781604Free article.