Metformin and gonadotropins for ovulation induction in patients with polycystic ovary syndrome: a systematic review with meta-analysis of randomized controlled trials.

Reprod Biol Endocrinol · 2014 · PMC3895676 · PMID 24387273

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a statistical trendno p-value reported

A statistical trend was arbitrarily established for P values that ranged between 0.05 and 0.09.

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