Metformin increases the ovulatory rate and pregnancy rate from clomiphene citrate in patients with polycystic ovary syndrome who are resistant to clomiphene citrate alone☆
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☆ Supported by the National Institute of Child Health and Human Development, National Institutes of Health, through cooperative agreement U54HD96008 as part of the Specialized Cooperative, and by National Institutes of Health grants M01RR00065 and M01RR0036.
PII: S0015-0282(00)01675-7
© 2001 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

