title: Postovulatory effects of levonorgestrel in emergency contraception (LNG EC).
authors: Horacio
authors: H
authors: Croxatto
mesh_terms: D003283:Contraceptives, Postcoital, Synthetic / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage*; D010060:Ovulation / Q000187:drug effects*
chemical_list: D003283:Contraceptives, Postcoital, Synthetic; D016912:Levonorgestrel