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Botulinum toxin type A therapy for hemifacial spasm (Cochrane Review) ABSTRACT Background: Hemifacial spasm is characterised by unilateral involuntary contractions of muscles innervated by the facial nerve. The usual cause is a vessel touching the facial nerve near its origin from the brain stem. Although it is a benign condition it can ca . . . |
Full article: The full article is available on Wiley InterScience at http://www.thecochranelibrary.com |