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Reproductive endocrinology

Revisiting ovulation induction in PCOS

Polycystic ovary syndrome (PCOS) is associated with anovulatory infertility. Many clinicians focus on the use of assisted reproductive technologies other than medical induction of ovulation. A new study demonstrating that the aromatase inhibitor letrozole is superior to clomiphene citrate (the current first-line therapy) for ovulation induction in women with PCOS returns attention to this area.

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Correspondence to Bart C. J. M. Fauser.

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B.C.J.M.F. has received consultancy fees and grant support from the following companies: Andromed, Ardana, COGI, Euroscreen, Ferring, Gedeon-Richter, Genovum, Merck Serono, MSD, Organon, Ova-Science, Pantharei Bioscience, PregLem, Roche, Schering, Schering Plough, Serono, Uteron, Watson Laboratories and Wyeth.

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Fauser, B. Revisiting ovulation induction in PCOS. Nat Rev Endocrinol 10, 704–705 (2014). https://doi.org/10.1038/nrendo.2014.156

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