Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

230 questions · 232 findings · 19 reviews · Skin · Headline outcomes only

No studies found 38 · 16.4%GRADE not reported 39 · 16.8%Very low 22 · 9.5%Low 75 · 32.3%Moderate 47 · 20.3%High 11 · 4.7%