title: Intermittent parasystole originating in the reentrant path of ventricular extrasystoles.
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000503:physiopathology*; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male