Saldarriaga, Juan F., and Elkin Martínez. “Factors Associated to Labour Absenteeism Due to Medical Cause in an University Institution”. Revista Facultad Nacional de Salud Pública 25, no. 1 (October 23, 2008): 1–8. Accessed February 8, 2025. https://revistas.udea.edu.co/index.php/fnsp/article/view/207.