title: The new progestogens.
authors.affiliation: Department of Obstetrics and Gynaecology, University Hospital of South Manchester, West Didsbury, UK.
authors.forename: M
authors.initials: M
authors.lastname: Elstein
authors.forename: E
authors.initials: E
authors.lastname: Eyong
mesh_terms: D003280:Contraceptives, Oral, Synthetic; D005260:Female; D006801:Humans; D045167:Progesterone Congeners
chemical_list: D003280:Contraceptives, Oral, Synthetic; D045167:Progesterone Congeners