Restrepo-Betancur, Luis F. “Economic Investment in Health Programs in North, Central and South American Countries During the Last Twenty Years”. Universidad y Salud 25, no. 2 (June 26, 2023): D22-D26. Accessed April 15, 2026. https://revistas2.udenar.edu.co/index.php/usalud/article/view/6434.