RETRACTED: Letrozole versus combined metformin and clomiphene citrate for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a randomized controlled trial
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).
Source: Fertility and Sterility - Category: Reproduction Medicine Authors: Hatem Abu Hashim, Tarek Shokeir, Ahmed Badawy Tags: Retraction notice Source Type: research
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