title: Endometrial progesterone receptors and levonorgestrel as emergency contraceptive.
authors.forename: Wilder Alberto
authors.initials: WA
authors.lastname: Palomino
authors.forename: Luigi
authors.initials: L
authors.lastname: Devoto
mesh_terms: D044363:Contraception, Postcoital / Q000379:methods*; D004717:Endometrium / Q000737:chemistry* / Q000187:drug effects / Q000502:physiology; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage*; D010060:Ovulation / Q000187:drug effects; D016032:Randomized Controlled Trials as Topic; D011980:Receptors, Progesterone / Q000032:analysis / Q000187:drug effects* / Q000502:physiology
chemical_list: D011980:Receptors, Progesterone; D016912:Levonorgestrel