letrozole vs clomiphene PCOS infertility ovulation induction, Legro letrozole clomiphene polycystic ovary syndrome, aromatase inhibitor versus clomiphene citrate PCOS fertility, NICHD Reproductive Medicine Network PCOS trial, first line ovulation induction polycystic ovary syndrome, letrozole live birth rate PCOS randomized trial, clomiphene citrate resistance PCOS treatment alternatives, ovulation induction agents comparative effectiveness PCOS, polycystic ovary syndrome anovulatory infertility pharmacotherapy, letrozole clomiphene New England Journal Medicine
PMID 25295506 25295506 DOI 10.1056/NEJMc1409550 10.1056/NEJMc1409550
Cite this article
Legro, R. S., & Zhang, H. (2014). Letrozole or Clomiphene for Infertility in the Polycystic Ovary Syndrome. *The New England journal of medicine*, *371*(15), 1463-1464. https://doi.org/10.1056/NEJMc1409550
Legro RS, Zhang H. Letrozole or Clomiphene for Infertility in the Polycystic Ovary Syndrome. N Engl J Med. 2014;371(15):1463-1464. doi:10.1056/NEJMc1409550
Legro, R. S., and H. Zhang. "Letrozole or Clomiphene for Infertility in the Polycystic Ovary Syndrome." *The New England journal of medicine*, vol. 371, no. 15, 2014, pp. 1463-1464.
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