title: Electrophysiologic effects of dopamine on sheep cardiac Purkinje fibers.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000818:Animals; D003042:Cocaine / Q000494:pharmacology; D004298:Dopamine / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004558:Electric Stimulation; D006329:Heart Conduction System / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D008839:Microelectrodes; D011217:Practolol / Q000494:pharmacology; D011433:Propranolol / Q000494:pharmacology; D012756:Sheep; D013268:Stimulation, Chemical; D013997:Time Factors
chemical_list: D000319:Adrenergic beta-Antagonists; D011433:Propranolol; D003042:Cocaine; D011217:Practolol; D004298:Dopamine