title: General reversed-phase high-performance liquid chromatography procedure for the analysis of oral contraceptive formulations.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003276:Contraceptives, Oral / Q000032:analysis*; D003278:Contraceptives, Oral, Hormonal / Q000032:analysis*; D007202:Indicators and Reagents
chemical_list: D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D007202:Indicators and Reagents