Blockade of ovulation by melatonin.
D000818:Animals; D002552:Cerebral Ventricles; D004971:Estrus / Q000187:drug effects; D005260:Female; D007267:Injections; D007986:Luteinizing Hormone / Q000037:antagonists & inhibitors; D008550:Melatonin / Q000494:pharmacology*; D010060:Ovulation / Q000187:drug effects*; D011247:Pregnancy; D051381:Rats; D013997:Time Factors
D007986:Luteinizing Hormone; D008550:Melatonin