Figueiredo, L. T. M.; Rosa, A. P. T. da; Fiorillo, A. M. Arbovirus Antibody Levels in the Population of the Ribeirão Preto Area, S.Paulo State (Brazil) . Rev. saúde pública 1986, 20 (3), 204-211. https://doi.org/10.1590/S0034-89101986000300003.