title: Determination of ethynylestradiol and norethindrone in synthetic intestinal fluid and in timed-release oral formulations.
authors.forename: N F
authors.initials: NF
authors.lastname: Swynnerton
authors.forename: J B
authors.initials: JB
authors.lastname: Fischer
mesh_terms: D019411:Clinical Laboratory Techniques; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003278:Contraceptives, Oral, Hormonal; D003933:Diagnosis; D004997:Ethinyl Estradiol; D005193:Family Planning Services; D066298:In Vitro Techniques; D009640:Norethindrone; D012106:Research
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003278:Contraceptives, Oral, Hormonal; D004997:Ethinyl Estradiol; D009640:Norethindrone
keywords: Clinical Research; Contraception; Contraceptive Agents, Estrogen--analysis; Contraceptive Agents, Female--analysis; Contraceptive Agents, Progestin--analysis; Contraceptive Agents--analysis; Ethinyl Estradiol--analysis; Examinations And Diagnoses; Family Planning; In Vitro; Laboratory Examinations And Diagnoses; Laboratory Procedures; Norethindrone--analysis; Research Methodology