Moura, J.R.A. et al. 2021. Epidemiology of gestational syphilis in a Brazilian state: analysis in the light of the social-ecological theory. Revista da Escola de Enfermagem da USP. 55, (Sep. 2021), e20200271. DOI:https://doi.org/10.1590/1980-220X-REEUSP-2020-0271.