Brito, Valquiria O. C., Deolinda Parra, Regina Facchini, and Cassia Maria Buchalla. 2007. “ HIV Infection, Hepatitis B and C and Syphilis in Homeless People, in the City of São Paulo, Brazil ”. Revista De Saúde Pública 41 (suppl.2): 47-56. https://doi.org/10.1590/S0034-89102007000900009.