title: [A continuous experience of the use of norethindrone-ethinyl estradiol combination in small doses as a contraceptive].
mesh_terms: D000293:Adolescent; D000328:Adult; D002986:Clinical Trials as Topic; D003276:Contraceptives, Oral / Q000008:administration & dosage*; D003277:Contraceptives, Oral, Combined / Q000008:administration & dosage* / Q000009:adverse effects; D004341:Drug Evaluation; D004997:Ethinyl Estradiol / Q000008:administration & dosage* / Q000009:adverse effects; D005260:Female; D006801:Humans; D008875:Middle Aged; D009640:Norethindrone / Q000008:administration & dosage* / Q000009:adverse effects; D011247:Pregnancy
chemical_list: D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D004997:Ethinyl Estradiol; D009640:Norethindrone
vernacular_title: Experiencia continuada con el empleo de la combinación noretindrona-etinil estradiol a dósis baja como anticonceptivo