[Comparison of the effect of various dosages of anordrin and levonorgestrel on the pituitary responsiveness to GnRH].
D000818:Animals; D003271:Contraceptive Agents, Female / Q000494:pharmacology*; D005260:Female; D016912:Levonorgestrel; D007986:Luteinizing Hormone / Q000378:metabolism; D009635:Norandrostanes / Q000008:administration & dosage / Q000494:pharmacology*; D009644:Norgestrel / Q000008:administration & dosage / Q000494:pharmacology*; D010903:Pituitary Gland, Anterior / Q000187:drug effects*; D010906:Pituitary Hormone-Releasing Hormones / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains
D003271:Contraceptive Agents, Female; D009635:Norandrostanes; D010906:Pituitary Hormone-Releasing Hormones; D009644:Norgestrel; D016912:Levonorgestrel; C010855:anordrin; D007986:Luteinizing Hormone