title: Oral contraception with a biphasic tablet (observations with anteovin).
authors.forename: F
authors.initials: F
authors.lastname: Tallián
mesh_terms: D000293:Adolescent; D000328:Adult; D003277:Contraceptives, Oral, Combined; D003278:Contraceptives, Oral, Hormonal; D004341:Drug Evaluation; D004997:Ethinyl Estradiol / Q000008:administration & dosage*; D019304:Ethinyl Estradiol-Norgestrel Combination; D005260:Female; D006801:Humans; D008875:Middle Aged; D009644:Norgestrel / Q000008:administration & dosage*; D013607:Tablets
chemical_list: D003277:Contraceptives, Oral, Combined; D003278:Contraceptives, Oral, Hormonal; D013607:Tablets; D009644:Norgestrel; D004997:Ethinyl Estradiol; D019304:Ethinyl Estradiol-Norgestrel Combination