Frequency of familial inheritance among 488 index patients with idiopathic focal dystonia and clinical variability in a large family

Abstract excerpt

Idiopathic torsion dystonia is characterized by involuntary twisting movements and postures. One molecularly defined form with generalized dystonia has been shown to be autosomal dominantly inherited with reduced penetrance in chromosome 9q34.1, especially in Ashkenazi Jewish families, while other generalized families from Europe and families with other subtypes of dystonia have been excluded from linkage to this...

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