New data and concepts concerning the ventricular gradient.
D000818:Animals; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D006327:Heart Block / Q000503:physiopathology; D006329:Heart Conduction System / Q000502:physiology*; D006801:Humans; D016276:Ventricular Function