Zapata Herrera, Marleny, and Nora Eugenia Zapata Gómez. “Working Conditions of Nurses and the Forms of Contracting in Medellín, Colombia”. Universidad y Salud 17, no. 2 (April 26, 2015): 212–223. Accessed April 15, 2026. https://revistas2.udenar.edu.co/index.php/usalud/article/view/2708.