title: Relationship between progesterone and prolactin surges in aged and young pseudopregnant rats.
mesh_terms: D004092:20-alpha-Dihydroprogesterone / Q000097:blood*; D000367:Age Factors; D000818:Animals; D002369:Castration; D002940:Circadian Rhythm; D004958:Estradiol / Q000494:pharmacology; D005260:Female; D010053:Ovary / Q000502:physiology*; D011374:Progesterone / Q000031:analogs & derivatives* / Q000097:blood*; D011388:Prolactin / Q000097:blood*; D011555:Pseudopregnancy / Q000139:chemically induced; D051381:Rats
chemical_list: D004092:20-alpha-Dihydroprogesterone; D011374:Progesterone; D004958:Estradiol; D011388:Prolactin