title: Ultrasound-guided nerve blocks: the real position of the needle should be defined.
authors.forename: Olivier
authors.initials: O
authors.lastname: Choquet
authors.forename: Xavier
authors.initials: X
authors.lastname: Capdevila
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D009407:Nerve Block / Q000379:methods*; D012584:Sciatic Nerve / Q000000981:diagnostic imaging*; D014463:Ultrasonography