Ramírez-Latorre, Juan Luis, et al. “Ambulatory Intravenous Analgesia Using Elastomeric Pumps in Patients Undergoing Plastic Surgery: Prospective Case Series”. Colombian Journal of Anesthesiology, vol. 46, no. Supplement, Dec. 2018, pp. 3-7, https://www.revcolanest.com.co/index.php/rca/article/view/105.