Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

164 questions · 165 findings · 15 reviews · Skin

No studies found 50 · 30.3%GRADE not reported 14 · 8.5%Very low 27 · 16.4%Low 37 · 22.4%Moderate 31 · 18.8%High 6 · 3.6%