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Barral A, Barral-Netto M, Almeida R, de Jesus AR, Grimaldi Júnior G, Netto EM, Santos I, Bacellar O, Carvalho EM.Barral A, et al. Among authors: santos i.Am J Trop Med Hyg. 1992 Nov;47(5):587-92. doi: 10.4269/ajtmh.1992.47.587.Am J Trop Med Hyg. 1992.PMID: 1449199
Barral A, Almeida RP, de Jesus AR, Medeiros Neto E, Santos IA, Johnson W Jr.Barral A, et al. Among authors: santos ia.Mem Inst Oswaldo Cruz. 1987 Oct-Dec;82(4):579. doi: 10.1590/s0074-02761987000400018.Mem Inst Oswaldo Cruz. 1987.PMID: 3507920Free article.No abstract available.
Barral-Netto M, Santos S, Santos I, von Sohsten R, Bittencourt AL, Carvalho EM, Barral A, Waters M.Barral-Netto M, et al. Among authors: santos s, santos i.Acta Trop. 1999 Mar 15;72(2):185-201. doi: 10.1016/s0001-706x(98)00097-7.Acta Trop. 1999.PMID: 10206118Clinical Trial.
Marques-Gomes C, Diz-Lopes M, Braz L, Martins A, Oliveira D, Nicolau R, Santos I, Costa L, Bernardes M.Marques-Gomes C, et al. Among authors: santos i.Lupus. 2025 Jan 17:9612033251314610. doi: 10.1177/09612033251314610. Online ahead of print.Lupus. 2025.PMID: 39819214