Article
High concordance for essential tremor in monozygotic twins of old age.
Neurology - 27 Jan 2004
Lorenz D, Frederiksen H, Moises H, Kopper F, Deuschl G, Christensen K
Abstract excerpt
OBJECTIVE: To assess the relative contribution of genetic and environmental factors for the etiology of essential tremor (ET) and to explore the effect of different diagnostic criteria. METHODS: A total of 2,448 twins of the Danish twin registry aged 70 years or more were screened for ET by an interview and an Archimedes spiral test. All twin pairs (n = 162) with a positive screening test of at least one of the...
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