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Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of childbearing age (6.8%-18%), is among the most common causes of infertility due to ovulation factors, and accounts for 55%-70% of infertility cases caused by chronic anovulation. In this study, we used a combination of letrozole and clomiphene in patients resistant to both drugs individually, and studied the effects of this combination in ovulation and pregnancy in resistant PCOS patients.

Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome