title: Methodological considerations of ultrasound-guided spinal anesthesia using the Ultrasonix GPS™ needle tracking system.
authors: Silke
authors: S
authors: Brinkmann
authors: Himat
authors: H
authors: Vaghadia
authors: Andrew
authors: A
authors: Sawka
authors: Raymond
authors: R
authors: Tang
mesh_terms: D000775:Anesthesia, Spinal / Q000379:methods*; D006801:Humans; D008297:Male; D018084:Ultrasonography, Interventional / Q000379:methods*