Privatization of the Brazilian National Health Service (SUS): A literature review based on scientific articles from the Scielo database. Research, Society and Development, [S. l.], v. 10, n. 5, p. e9610514676, 2021. DOI: 10.33448/rsd-v10i5.14676. Disponível em: https://rsdjournal.org/rsd/article/view/14676. Acesso em: 6 dec. 2025.