Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

88 questions · 90 findings · 13 reviews · Skin

No studies found 11 · 12.2%GRADE not reported 4 · 4.4%Very low 27 · 30%Low 32 · 35.6%Moderate 14 · 15.6%High 2 · 2.2%