title: Cardiac pacemaking.
mesh_terms: D000818:Animals; D002395:Catecholamines / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D011943:Receptors, Adrenergic, beta / Q000502:physiology; D012110:Reserpine / Q000494:pharmacology; D012849:Sinoatrial Node / Q000502:physiology*
chemical_list: D002395:Catecholamines; D011943:Receptors, Adrenergic, beta; D012110:Reserpine