National Health Card as a means of improving the Unified Health System (SUS): Integrative literature review. Research, Society and Development, [S. l.], v. 11, n. 17, p. e34111738658, 2022. DOI: 10.33448/rsd-v11i17.38658. Disponível em: https://ojs34.rsdjournal.org/index.php/rsd/article/view/38658. Acesso em: 28 jun. 2025.