title: Ulipristal acetate for emergency contraception?
authors.forename: Gilda
authors.initials: G
authors.lastname: Piaggio
authors.forename: Helena
authors.initials: H
authors.lastname: von Hertzen
mesh_terms: D044363:Contraception, Postcoital; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage; D009649:Norpregnadienes / Q000008:administration & dosage*
chemical_list: D009649:Norpregnadienes; D016912:Levonorgestrel; C094854:ulipristal