Gómez-Henao, Paula Andrea, and José Alexander Carreño-Dueñas. “Cardiovascular Pre-Anesthesia Evaluation in Oncological Surgery”. Colombian Journal of Anesthesiology, vol. 44, no. 1, Jan. 2016, pp. 17-22, https://www.revcolanest.com.co/index.php/rca/article/view/62.