Browsing by Author "Ortiz, R. E."
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Ortiz, M. E.; Ortiz, R. E.; Fuentes, M. A.; Parraguez Gamboa, Víctor; Croxatto, Horacio B. (Oxford University Press, 2004)Background: Experimental evidence to disprove the belief that emergency contraception with levonorgestrel (LNG) prevents pregnancy by interfering with post-fertilization events is lacking. Here we determined the effect of ...