Taha AM: Ultrasound-guided obturator nerve block: A proximal interfascial technique. Anesth Analg 114:236-39 (2012)
Kendir S, Akkaya T, Comert A, Sayin M, Tatlisumak E, Elhan A, Tekmedir I: The location of the obturator nerve: A three-dimensional description of the obturator canal. Surg Radiol Anat 30:495-501 (2008)