Effect of preconceptional metformin on abortion risk in polycystic ovary syndrome: a systematic review and meta-analysis of randomized controlled trials
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S.P. has nothing to disclose. A.F. has nothing to disclose. F.O. has nothing to disclose. F.Z. has nothing to disclose.
PII: S0015-0282(08)03708-4
doi:10.1016/j.fertnstert.2008.08.087
© 2009 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

