Canto, Cynthia Liliane Motta do, et al. “ Detection of HIV and HCV RNA in Semen from Brazilian Coinfected Men Using Multiplex PCR before and After Semen Washing ”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 48, no. 4, Aug. 2006, pp. 201-6, https://www.revistas.usp.br/rimtsp/article/view/31008.