title: [Spatial relationships between the ultrasound transducer, the needle, and nerve structures in plexus and peripheral nerve blocks].
authors.forename: C L
authors.initials: CL
authors.lastname: Errando
mesh_terms: D001132:Arm / Q000033:anatomy & histology / Q000294:innervation; D001917:Brachial Plexus / Q000033:anatomy & histology*; D006801:Humans; D009339:Needles; D009407:Nerve Block / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D059348:Peripheral Nerve Injuries; D009626:Terminology as Topic; D014159:Transducers; D018084:Ultrasonography, Interventional / Q000295:instrumentation* / Q000379:methods; D014947:Wounds and Injuries / Q000517:prevention & control