title: Post-ovulatory administration of levonorgestrel: interference with implantation is not excluded.
authors.forename: Renzo
authors.initials: R
authors.lastname: Puccetti
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Noia
authors.forename: Maria
authors.initials: M
authors.lastname: Riccardi
authors.forename: Chiara
authors.initials: C
authors.lastname: de Waure
authors.forename: Maria Luisa
authors.initials: ML
authors.lastname: Di Pietro
mesh_terms: D003271:Contraceptive Agents, Female / Q000008:administration & dosage*; D003280:Contraceptives, Oral, Synthetic / Q000008:administration & dosage*; D003281:Contraceptives, Postcoital / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage*; D008597:Menstrual Cycle; D010060:Ovulation; D011247:Pregnancy
chemical_list: D003271:Contraceptive Agents, Female; D003280:Contraceptives, Oral, Synthetic; D003281:Contraceptives, Postcoital; D016912:Levonorgestrel