Szwarcwald, Célia L, Aristides Barbosa Junior, Angélica E Miranda, and Leidijany C Paz. 2007. “Results of the Sentinel Surveillance Project, 2006: Challenges for the Control of Congenital Syphilis in Brazil”. Brazilian Journal of Sexually Transmitted Diseases 19 (3-4). Niterói:128-33. https://bdst.emnuvens.com.br/revista/article/view/903.