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| Pre-DBS | Post-DBS | |
| TETRAS | ||
| Head | 3 | 2 |
| Right upper extremity | 3 | 2 |
| Left upper extremity | 3 | 2 |
| Standing | 3 | 1 |
| Spiral | 3.5 | 1 |
| BARS | ||
| Right finger–nose | 3 | 1 |
| Left finger–nose | 4 | 1 |
| Gait | 4 | 2 |
Abbreviations: BARS, brief ataxia rating scale; DBS, deep brain stimulation; TETRAS, The Essential Tremor Rating Assessment Scale.
