Interscalene block: the truth about twitches.
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Urmey
D000765:Anesthesia, Conduction; D001917:Brachial Plexus / Q000502:physiology*; D004558:Electric Stimulation; D006801:Humans; D009407:Nerve Block / Q000009:adverse effects; D010525:Peripheral Nerves / Q000502:physiology