Gutierrez-Galhardo, Maria Clara, et al. “ Clinical Characteristics and Evolution of Syphilis in 24 HIV+ Individuals in Rio De Janeiro, Brazil ”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 47, no. 3, June 2005, pp. 153-7, https://revistas.usp.br/rimtsp/article/view/30909.