Comparison of three single doses of mifepristone as emergency contraception: A randomised trial
Task Force on Postovulatory Methods of Fertility Regulation.
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A randomized double-blind comparison of two single doses of mifepristone for emergency contraception
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Low dose mifepristone and two regimens of levonorgestrel for emergency contraception: A WHO multicentre randomised trial
DOI 10.1016/S0140-6736(02)11767-3
Von Hertzen H, Piaggio G, Ding J, Chen J, Song S, Bartfai G, et al. Low dose mifepristone and two regimens of levonorgestrel for emergency contraception: a WHO multicentre randomised trial. Lancet 2002; 360: 1803-1810 (Pubitemid 35449417)
A randomized, double-blind, multicentre study on comparing levonor-gestrel and mifepristone for emergency contraception
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