Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

191 questions · 214 findings · 25 reviews · Airways

No studies found 37 · 17.3%GRADE not reported 9 · 4.2%Very low 48 · 22.4%Low 60 · 28%Moderate 54 · 25.2%High 6 · 2.8%