BERMÚDEZ-GUERRERO, F. J.; GÓMEZ-CAMARGO, D.; PALOMINO-ROMERO, R.; LLAMAS-BUSTOS, W.; RAMOS-CLASON, E. A comparative analysis of 3 sedation guidelines for patients undergoing subarachnoid anesthesia. Randomized, single blind clinical trial. Colombian Journal of Anesthesiology, v. 43, n. 2, p. 122-128, 1 Apr. 2015.