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Perioperative parameters of the patient population.
| 1st BOTOX®-injection | 2nd BOTOX®-injection | 3rd BOTOX®-injection | 4th BOTOX®-injection | |
|---|---|---|---|---|
| Number of patients (n) | 51 | 26 | 7 | 3 |
| Proportion of women (n) | 39 | 19 | 7 | 3 |
| Proportion of men (n) | 12 | 7 | 0 | 0 |
| Operative time (min) | 17.1 ± 1.9 | 16.4 ± 1.7 | 16.6 ± 1.4 | 16.5 ± 1.1 |
| Injection interval (months) | – | 10.6 ± 1.8 | 12.3 ± 0.2 | 11.7 ± 0.9 |
