title: Combination of variations of the interscalene gap as a pitfall for ultrasound-guided brachial plexus block.
authors: Georg Christoph
authors: GC
authors: Feigl
authors: Thomas
authors: T
authors: Pixner
mesh_terms: D001917:Brachial Plexus / Q000000981:diagnostic imaging*; D006801:Humans; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging; D009407:Nerve Block / Q000009:adverse effects / Q000379:methods*; D018084:Ultrasonography, Interventional / Q000009:adverse effects / Q000379:methods*