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Barral A, Pedral-Sampaio D, Grimaldi Júnior G, Momen H, McMahon-Pratt D, Ribeiro de Jesus A, Almeida R, Badaro R, Barral-Netto M, Carvalho EM, et al.Barral A, et al. Among authors: grimaldi junior g.Am J Trop Med Hyg. 1991 May;44(5):536-46. doi: 10.4269/ajtmh.1991.44.536.Am J Trop Med Hyg. 1991.PMID: 2063957