title: Brachial plexus block: is a half-ring injection necessary?
authors.forename: R
authors.initials: R
authors.lastname: Martin
authors.forename: P
authors.initials: P
authors.lastname: Vallet
mesh_terms: D001132:Arm / Q000294:innervation*; D001917:Brachial Plexus; D006801:Humans; D009407:Nerve Block / Q000379:methods*; D012867:Skin / Q000294:innervation*