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Results from AMSTAR 2 checklist evaluation
| AMSTAR 2 score | Interpretation | Number of systematic reviews excluded or included |
| 0–4 | Critically low | Excluded (n=3) |
| 5–8 | Low | Excluded (n=15) |
| 9–11 | Moderate | Excluded (n=4); included (n=4) |
| 12–16 | High | Excluded (n=2); included (n=4) |
AMSTARM, A Measurement Tool to Assess Systematic Reviews.
