Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

43 questions · 43 findings · 6 reviews · Airways

No studies found 0 · 0%GRADE not reported 4 · 9.3%Very low 4 · 9.3%Low 9 · 20.9%Moderate 17 · 39.5%High 9 · 20.9%