title: Action potential duration in canine Purkinje tissue: effects of preceding excitation.
mesh_terms: D000200:Action Potentials; D000818:Animals; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D006329:Heart Conduction System / Q000502:physiology; D006339:Heart Rate; D066298:In Vitro Techniques; D011689:Purkinje Cells / Q000502:physiology*; D013997:Time Factors