title: Steroidal influence on morphology and behaviour in guinea-pigs.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D005260:Female; D005333:Fetus; D005835:Genitalia / Q000196:embryology*; D006168:Guinea Pigs; D007031:Hypothalamus / Q000196:embryology*; D008525:Medroxyprogesterone / Q000494:pharmacology; D009640:Norethindrone / Q000494:pharmacology; D010060:Ovulation / Q000187:drug effects; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D011372:Progestins / Q000494:pharmacology*; D012726:Sexual Behavior, Animal / Q000187:drug effects*; D013739:Testosterone / Q000494:pharmacology*
chemical_list: D011372:Progestins; D013739:Testosterone; D011374:Progesterone; D008525:Medroxyprogesterone; D009640:Norethindrone