Riveros Pérez, Efraín, et al. “Assessment of Empirical Antimicrobial Therapy and Adjustment According to Antibiogram in a Third-Level Hospital in Tunja”. Medicina UPB, vol. 33, no. 1, Dec. 2014, pp. 11-18, https://revistas.upb.edu.co/index.php/medicina/article/view/1468.