Girón-Arango, L. .; Vásquez-Sadder, M. I. .; González-Obregón, M. P. .; Gamero-Fajardo, C. E. Ultrasound-Guided Ankle Block: An Attractive Anaesthetic Technique for Foot Surgery. Colomb. J. Anesthesiol. 2015, 43, 283–289.