The antiovulatory effect of ethinyl oestradiol in sequential therapy.
D000032:Abortion, Therapeutic; D000328:Adult; D003276:Contraceptives, Oral / Q000008:administration & dosage*; D004997:Ethinyl Estradiol / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D008535:Megestrol / Q000494:pharmacology; D011372:Progestins / Q000008:administration & dosage*; D014182:Transplantation, Autologous
D003276:Contraceptives, Oral; D011372:Progestins; D004997:Ethinyl Estradiol; D008535:Megestrol