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Statistical comparison of improvements in both arms.
| Result | Botulinum toxin | Iontophoresis |
|---|---|---|
| Improved | 24 (80.0%) | 14 (46.7%) |
| Not improved | 6 (20.0%) | 16 (53.3%) |
| Total | 30 (100.0%) | 30 (100.0%) |
| Inference | Improved is significantly more associated with botulinum toxin with P = 0.007** | |
