Authors: Piaggio, G von Hertzen, H Grimes, D Van Look, PFA Peregoudov, S Vucurevic, M Weisberg, E Gebbie, AE Apter, D Ho, PC Khomassuridze, A Kirkman, RJE Healy, DL Grimes, DA Ding, JH Chen, JD Cheng, WY

Citation: G. Piaggio et al., Comparison of three single doses of mifepristone as emergency contraception: a randomised trial, LANCET, 353(9154), 1999, pp. 697-702