Martelli CMT, Andrade ALSS de, Cardoso D das DP, et al. Seroprevalence and risk factors for hepatitis B by AgHBs and anti-HBs markers in prisoners and first-time donors, in Central Brazil . Rev. saúde pública. 1990;24(4):270-276. doi:10.1590/S0034-89101990000400004