(1)
Calvache, J. A. .; Molina Garcia, R. A.; Trochez, A. L. .; Benitez, F. .; Arroyo , L. . Percutaneous Dilatational Tracheostomy Without Fiber Optic bronchoscopy—Evaluation of 80 Intensive Care Units Cases. Colomb. J. Anesthesiol. 2013, 41, 184–189.