Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

74 questions · 78 findings · 16 reviews · Heart

No studies found 10 · 12.8%GRADE not reported 0 · 0%Very low 28 · 35.9%Low 17 · 21.8%Moderate 21 · 26.9%High 2 · 2.6%