title: Evaluation of megestrol acetate and ethinyl estradiol as an oral contraceptive.
mesh_terms: D000293:Adolescent; D000328:Adult; D003276:Contraceptives, Oral / Q000494:pharmacology*; D004717:Endometrium / Q000473:pathology; D004997:Ethinyl Estradiol / Q000009:adverse effects / Q000494:pharmacology*; D005260:Female; D006801:Humans; D008535:Megestrol / Q000009:adverse effects / Q000494:pharmacology; D011372:Progestins / Q000494:pharmacology*
chemical_list: D003276:Contraceptives, Oral; D011372:Progestins; D004997:Ethinyl Estradiol; D008535:Megestrol