Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

41 questions · 42 findings · 6 reviews · ENT

No studies found 20 · 47.6%GRADE not reported 0 · 0%Very low 7 · 16.7%Low 10 · 23.8%Moderate 5 · 11.9%High 0 · 0%