Histopathology of the conducting system.
D001145:Arrhythmias, Cardiac / Q000209:etiology*; D002037:Bundle-Branch Block / Q000473:pathology; D004562:Electrocardiography; D006327:Heart Block / Q000473:pathology; D006329:Heart Conduction System / Q000002:abnormalities / Q000473:pathology*; D006801:Humans; D009203:Myocardial Infarction / Q000473:pathology; D012849:Sinoatrial Node / Q000473:pathology; D013610:Tachycardia / Q000473:pathology