Synergistic role of progestogens in estrogen induction of LH and FSH surge.
D000818:Animals; D002369:Castration; D004357:Drug Synergism; D004790:Enzyme Induction; D004997:Ethinyl Estradiol / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood*; D007986:Luteinizing Hormone / Q000097:blood*; D010053:Ovary / Q000502:physiology; D011278:Pregnanes / Q000494:pharmacology*; D011374:Progesterone / Q000494:pharmacology; D051381:Rats; D013997:Time Factors
D011278:Pregnanes; D004997:Ethinyl Estradiol; D011374:Progesterone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone