title: Clinical use of biphasic and triphasic pills.
authors.forename: J
authors.initials: J
authors.lastname: Cohen
mesh_terms: D001695:Biology; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D004194:Disease; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D008660:Metabolism; D010827:Physiology; D012106:Research; D012107:Research Design
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined
keywords: Biology; Contraception; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Effectiveness; Contraceptive Methods--contraindications; Contraceptive Methods--indications; Diseases; Evaluation; Family Planning; Measurement; Metabolic Effects; Oral Contraceptives, Combined--contraindications; Oral Contraceptives, Combined--indications; Oral Contraceptives, Phasic--contraindications; Oral Contraceptives, Phasic--indications; Oral Contraceptives--indications; Physiology; Qualitative Evaluation; Research Methodology; Use-effectiveness