Osmo, André Alexandre, et al. “ A Serological Inquiry for the Detection of Antibodies Against the Human Immunodeficiency Virus (HIV) in Children in a General Ward ”. Revista De Saúde Pública, vol. 24, no. 2, Apr. 1990, pp. 113-8, https://doi.org/10.1590/S0034-89101990000200006.