Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

23 questions · 23 findings · 3 reviews · ENT

No studies found 2 · 8.7%GRADE not reported 0 · 0%Very low 4 · 17.4%Low 7 · 30.4%Moderate 7 · 30.4%High 3 · 13%