Delgado Restrepo, Jorge Fernando, et al. “Comparison of Creatinine Clearance in Urine 24-Hour Volume and Renal Function Estimation from the MDRD Formula in Patients With Chronic Kidney Disease. Experience of Susalud”. Medicina UPB, vol. 30, no. 1, June 2011, pp. 30-35, https://revistas.upb.edu.co/index.php/medicina/article/view/1906.