Epidemiological characterization of gestational syphilis cases in the state of Pernambuco, Brazil. Research, Society and Development, [S. l.], v. 11, n. 9, p. e3111931655, 2022. DOI: 10.33448/rsd-v11i9.31655. Disponível em: https://rsdjournal.org/rsd/article/view/31655. Acesso em: 5 dec. 2025.