title: Effects on the canine P wave of discrete lesions in the specialized atrial tracts.
mesh_terms: D000818:Animals; D001145:Arrhythmias, Cardiac / Q000503:physiopathology; D016275:Atrial Function; D003714:Denervation; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D006329:Heart Conduction System / Q000502:physiology*; D009431:Neural Conduction; D010138:Pacemaker, Artificial; D013997:Time Factors