title: Desogestrel and ethinyloestradiol.
authors.forename: A A
authors.initials: AA
authors.lastname: Haspels
authors.forename: W J
authors.initials: WJ
authors.lastname: Weyers
mesh_terms: D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D004997:Ethinyl Estradiol; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D012106:Research
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D004997:Ethinyl Estradiol
keywords: Clinical Research; Contraception; Contraceptive Agents; Contraceptive Agents, Estrogen; Contraceptive Agents, Female; Contraceptive Methods; Ethinyl Estradiol; Evaluation; Family Planning; Oral Contraceptives; Research Methodology