[1]
J. A. . Calvache, R. A. Molina Garcia, A. L. . Trochez, F. . Benitez, and L. . Arroyo, “Percutaneous dilatational tracheostomy without fiber optic bronchoscopy—Evaluation of 80 intensive care units cases”, Colomb. J. Anesthesiol., vol. 41, no. 3, pp. 184–189, Jul. 2013.