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Characteristics of the 21 patients with means ± SD
| Gender | 6F/15M |
| Age in years | 69.1 ± 9.2 |
| Baseline tremor score on ETRS (0 to 144) | 57.6 ± 13.2 |
| Duration of tremor in years | 29.9 ± 15.0 |
| Family history of tremor | 19/21 |
| Alcohol-responsive tremor | 16/21 |
| Bilateral treatment | 3/21 |
