title: Nature of the gap phenomenon in man.
mesh_terms: D000200:Action Potentials; D001017:Aortic Coarctation / Q000150:complications; D002037:Bundle-Branch Block / Q000503:physiopathology; D004562:Electrocardiography; D006325:Heart Atria; D006327:Heart Block / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006339:Heart Rate; D006352:Heart Ventricles; D008722:Methods; D008839:Microelectrodes; D009431:Neural Conduction; D012032:Refractory Period, Electrophysiological; D013997:Time Factors