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Machado AA, Hirsch I, Figueiredo JF, Martinez R, de Freitas-Silva G, Chermann JC, Covas DT.Machado AA, et al. Among authors: covas dt.Rev Soc Bras Med Trop. 1996 Nov-Dec;29(6):615-7. doi: 10.1590/s0037-86821996000600016.Rev Soc Bras Med Trop. 1996.PMID: 9011891Portuguese.No abstract available.
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