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What do systematic reviews say?

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Evidence found and GRADE certainty

5 questions · 5 findings · 2 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 2 · 40%Low 2 · 40%Moderate 0 · 0%High 1 · 20%

Aromatase inhibitors with gonadotropins vs anti‐oestrogens with gonadotropins

Multiple pregnancy rate · intrauterine insemination (IUI) in women with infertility

Aromatase inhibitors with gonadotropins showed no clear difference in multiple pregnancy rate per couple compared with anti‐oestrogens with gonadotropins (low certainty).

1 finding from 1 review

Letrozole with or without adjuncts vs SERMs with or without adjuncts followed by timed intercourse

Multiple pregnancy rate · infertile women with polycystic ovary syndrome

Letrozole with or without adjuncts showed no clear difference in multiple pregnancy rate compared with SERMs with or without adjuncts followed by timed intercourse (high certainty).

1 finding from 1 review