Gestational Syphilis: epidemiological impact in Maranhão state, Brazil. Research, Society and Development, [S. l.], v. 9, n. 2, p. e83922110, 2020. DOI: 10.33448/rsd-v9i2.2110. Disponível em: https://rsdjournal.org/rsd/article/view/2110. Acesso em: 5 dec. 2025.