Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

108 questions · 108 findings · 14 reviews · Skin

No studies found 20 · 18.5%GRADE not reported 4 · 3.7%Very low 34 · 31.5%Low 25 · 23.1%Moderate 24 · 22.2%High 1 · 0.9%