da Silva, Leonardo Santos, Deborah Veiga Santos, Cristine Blume Brietzke, e Laura Vicedo Jacociunas. 2017. “Prevalence of HIV Infection, Syphilis, and Syphilis/HIV Coinfection in Blood Donors from a Blood Bank of Porto Alegre, Southern Brazil”. Clinical and Biomedical Research 37 (4). https://seer.ufrgs.br/index.php/hcpa/article/view/74414.