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Da Silva LC, da Fonseca LE, Carrilho FJ, Alves VA, Sitnik R, Pinho JR.Da Silva LC, et al. Among authors: sitnik r.Rev Inst Med Trop Sao Paulo. 2000 Jul-Aug;42(4):189-96. doi: 10.1590/s0036-46652000000400003.Rev Inst Med Trop Sao Paulo. 2000.PMID: 10968881Free article.Clinical Trial.