title: Quantitative effect of vagal stimulation on heart interval in newborn and older rabbits.
mesh_terms: D000367:Age Factors; D000704:Analysis of Variance; D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D001285:Atropine / Q000494:pharmacology; D004558:Electric Stimulation; D006321:Heart / Q000294:innervation*; D006339:Heart Rate; D066298:In Vitro Techniques; D010477:Perfusion; D011817:Rabbits; D014630:Vagus Nerve / Q000502:physiology*
chemical_list: D001285:Atropine