Action Eyebrow Tremor in a Patient with Congenital Nystagmus: An Unusual Cranial Tremor Phenotype

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Data sharing not applicable to this article as no datasets were generated or analysed during the current study. Supplementary Table 1. Previously reported cases of upper facial tremor: demographic and clinical features, electromyography (EMG) findings (when available), and etiological classification (chronological order). Data S1. Disclosure statement form. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.