Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

24 questions · 26 findings · 18 reviews · Airways

No studies found 4 · 15.4%GRADE not reported 0 · 0%Very low 6 · 23.1%Low 7 · 26.9%Moderate 7 · 26.9%High 2 · 7.7%