title: The 3-keto-desogestrel/ethinylestradiol ring: a new parenteral form of hormonal contraception.
authors.forename: A E
authors.initials: AE
authors.lastname: Schindler
mesh_terms: D000328:Adult; D003267:Contraception / Q000379:methods; D003274:Contraceptive Devices, Female / Q000009:adverse effects; D017135:Desogestrel / Q000008:administration & dosage*; D004997:Ethinyl Estradiol / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D045167:Progesterone Congeners / Q000008:administration & dosage
chemical_list: D045167:Progesterone Congeners; C044815:etonogestrel; D004997:Ethinyl Estradiol; D017135:Desogestrel