title: Ontogeny of heart-rate controls in hamster, rat, and guinea pig.
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D001285:Atropine / Q000494:pharmacology; D006224:Cricetinae; D003864:Depression, Chemical; D005260:Female; D005333:Fetus / Q000502:physiology*; D006168:Guinea Pigs; D006321:Heart / Q000196:embryology / Q000294:innervation; D006339:Heart Rate / Q000187:drug effects; D007545:Isoproterenol / Q000494:pharmacology; D010275:Parasympathetic Nervous System / Q000502:physiology; D011247:Pregnancy; D011433:Propranolol / Q000494:pharmacology; D051381:Rats; D012377:Rodentia / Q000502:physiology*; D013045:Species Specificity; D013268:Stimulation, Chemical; D013564:Sympathetic Nervous System / Q000502:physiology
chemical_list: D001285:Atropine; D011433:Propranolol; D007545:Isoproterenol