title: Eight ball, corner pocket for ultrasound-guided supraclavicular block: high risk for a scratch.
authors.forename: Ron
authors.initials: R
authors.lastname: Samet
authors.forename: Edwin
authors.initials: E
authors.lastname: Villamater
mesh_terms: D000776:Anesthesiology; D001917:Brachial Plexus / Q000000981:diagnostic imaging*; D002968:Clavicle / Q000000981:diagnostic imaging*; D002983:Clinical Competence; D006801:Humans; D009339:Needles; D009407:Nerve Block / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D012306:Risk; D014463:Ultrasonography / Q000592:standards