Martelli, C.M.T. et al. 1990. Seroprevalence and risk factors for hepatitis B by AgHBs and anti-HBs markers in prisoners and first-time donors, in Central Brazil . Revista de Saúde Pública. 24, 4 (Aug. 1990), 270–276. DOI:https://doi.org/10.1590/S0034-89101990000400004.