The coronavirus advancement and the challenges for health care in vulnerable communities in the interior of Pernambuco State, Brazil. Research, Society and Development, [S. l.], v. 9, n. 8, p. e855986428, 2020. DOI: 10.33448/rsd-v9i8.6428. Disponível em: https://www.rsdjournal.org/rsd/article/view/6428. Acesso em: 14 dec. 2025.