Tejada de Azuero, Elsa Lucía, Julián A. Herrera, and Carlos Hugo Moreno. “ Colombia 1999-2000”. Colombia Medica 31, no. 3 (October 25, 2000): 131–134. Accessed March 28, 2024. https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/165.