Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

774 questions · 787 findings · 58 reviews · Anaesthesia

No studies found 123 · 15.6%GRADE not reported 179 · 22.7%Very low 192 · 24.4%Low 188 · 23.9%Moderate 72 · 9.1%High 33 · 4.2%