title: Inhibitory effect of morphine on serum gonadotropins and prolactin of proestrous rats.
mesh_terms: D000818:Animals; D004971:Estrus; D005260:Female; D006065:Gonadotropins, Pituitary / Q000097:blood*; D009020:Morphine / Q000494:pharmacology*; D011247:Pregnancy; D011359:Proestrus; D011388:Prolactin / Q000097:blood*; D051381:Rats
chemical_list: D006065:Gonadotropins, Pituitary; D009020:Morphine; D011388:Prolactin