Comparison of clomiphene citrate, metformin, or the combination of both for first-line ovulation induction, achievement of pregnancy, and live birth in Asian women with polycystic ovary syndrome: a randomized controlled trial
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PII: S0015-0282(07)04184-2
doi:10.1016/j.fertnstert.2007.12.002
© 2009 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

