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What do systematic reviews say?

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Evidence found and GRADE certainty

372 questions · 374 findings · 178 reviews

No studies found 374 · 100%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Band ligation vs no intervention or a sham procedure

Health‐related quality of life · children with portal hypertension and large oesophageal varices, without previous gastrointestinal bleeding or beta‐blocker treatment

The review found no eligible studies for this question.

1 finding from 1 review

Nifedipine vs placebo

Health‐related quality of life · primary dysmenorrhoea

The review found no eligible studies for this question.

1 finding from 1 review