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*p < 0.0001 as compared to baseline and at 30 minutes compared to 60 minutes
VAS: visual analogue scale
| Observational points | Mean VAS (mean ± SD) |
| Baseline (0 minutes) | 7.89 ± 1.44 |
| 30 minutes | 4.23 ± 1.80* |
| 60 minutes | 2.14 ± 1.78* |
