González Cárdenas, Víctor Hugo, et al. “Pre-Anesthesia Evaluation in Patients With Chronic Renal Disease (emphasis on Cardiovascular Risk)”. Colombian Journal of Anesthesiology, vol. 41, no. 2, Apr. 2013, pp. 139-45, https://www.revcolanest.com.co/index.php/rca/article/view/882.