DOI: 10.1055/s-00000072

Seminars in Reproductive Medicine

References

von Hertzen H, Piaggio G, Ding J. WHO Research Group on Post-ovulatory Methods of Fertility Regulation. et al
Low dose mifepristone and two regimens of levonorgestrel for emergency contraception: a WHO multicentre randomised trial 
Lancet 2002; 360(9348): 1803-1810  

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