Human menopausal gonadotropin (HMG) combined different doses of letrozole for treating anovulatory infertility in patients with polycystic ovary syndrome: a randomized controlled trial
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Objective: To optimize ovulation induction protocols for infertile women with PCOS, ovulation effect and adverse reactions of different doses of letrozole (2.5 vs 5.0 mg) combined sequentially HMG therapy were compared in inferti... ...
