Effectiveness of levonorgestrel emergency contraception given before or after ovulation — a pilot study☆
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☆ Funding for this study came from The Family Planning Foundation, FPA Health, Sydney.
PII: S0010-7824(06)00361-1
doi:10.1016/j.contraception.2006.08.015
© 2007 Elsevier Inc. All rights reserved.
