Clinical efficacy of the brachial plexus block via the posterior approach.
Boezaart
André P
AP
D001917:Brachial Plexus; D002404:Catheterization / Q000295:instrumentation; D004558:Electric Stimulation / Q000295:instrumentation; D006801:Humans; D019547:Neck Pain / Q000453:epidemiology; D009407:Nerve Block / Q000379:methods*