Paez, Malvina, and María Isabel R Riveros. 2006. “Epidemiologic Situation of the Congenital and Maternal Syphilis in Thesub Public Sectorsub Public Sectorsub Public Sectorsub Public Sectorsub Public Sector, Paraguay – 2000-2004”. Brazilian Journal of Sexually Transmitted Diseases 18 (2). Niterói:117-23. https://bjstd.org/revista/article/view/639.