Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

15 questions · 15 findings · 7 reviews · ENT

No studies found 6 · 40%GRADE not reported 0 · 0%Very low 2 · 13.3%Low 4 · 26.7%Moderate 2 · 13.3%High 1 · 6.7%