Economía y Salud . Cuadernos Médico Sociales, [S. l.], v. 19, n. 3, p. 5–9, 1978. Disponível em: https://www.cms.ojstest.com/sitio%20nuevo%20ok/index.php/cms/article/view/1722. Acesso em: 17 sep. 2025.