Essential tremor (ET), a movement disorder characterized by postural or kinetic tremor as the main clinical manifestations, is one of the most common neurological diseases. Traditional view contends that essential tremor is a benign movement disorder with merely motor symptoms. Recent researches show that patients may have some non-motor symptoms besides motor symptoms. Researches and exploration on its non-motor symptoms provide us with a new perspective for clinical diagnosis, treatment and better understanding of the disease.?doi:?10.3969/j.issn.1672-6731.2014.05.016.
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