References

¹ Ulipristal acetate prevents ovulation more effectively than levonorgestrel: analysis of pooled data from three randomized trials of emergency contraception regimens☆ Vivian Brachea,⁎, Leila Cochona, Maëva Deniaudb, Horacio B. Croxattoc aPROFAMILIA, Santo Domingo, Dominican Republic bMDSTAT Consulting, Melun, France cUniversidad Andres Bello, Santiago, Chile Received 31 January 2013; revised 8 May 2013; accepted 16 May 2013.

² Gemzell-Danielsson K et al. Gynecol Endocrinol. 2014; 30:685-7.

³ Brache V, Cochon L, Deniaud M, Croxatto HB. Ulipristal acetate prevents ovulation more effectively than levonorgestrel: analysis of pooled data from three randomized trials of emergency contraception regimens. Contraception 2013;88:611-618.

⁴ Glasier AF et al: Ulipristal acetate versus levonorgestrel for emergency contraception: a randomised non-inferiority trial and meta-analysis.Lancet 2010; 375: 555-562.

⁵ Rabe, T. et al. Emergency contraception – an update. Joint statement of the German Society for Gynecological Endocrinology and Reproductive Medicine (DGGEF) e. V. and the Professional Association of Gynecologists.

⁶ Baird, D. D. et al. Application of a method for estimating day of ovulation using urinary estrogen and progesterone metabolites. Epidemiology. 1995; 6(5): 547 – 550.

⁷ Rabe, T. et al. Emergency contraception – an update. Joint statement of the German Society for Gynecological Endocrinology and Reproductive Medicine (DGGEF) e. V. and the Professional Association of Gynecologists (BVF) e.V. Frauenarzt 2014; 55: 774 – 779.

⁸Emergency contraception – an update Joint statement of the German Society of Gynecological Endocrinology and Reproductive Medicine (DGGEF) e. V. and the Professional Association of Gynecologists (BVF) e. V. – Update of Feb. 6, 2013.