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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 NON ‐ Healing | 1 | 40 | Odds Ratio (M‐H, Fixed, 95% CI) | 0.17 [0.03, 0.92] |
| 2 Headache | 1 | 40 | Odds Ratio (M‐H, Fixed, 95% CI) | 0.30 [0.03, 3.15] |
