title: The clinical significance of left bundle branch block.
mesh_terms: D000328:Adult; D000368:Aged; D002037:Bundle-Branch Block / Q000175:diagnosis / Q000209:etiology*; D006328:Cardiac Catheterization; D009202:Cardiomyopathies / Q000150:complications; D003327:Coronary Disease / Q000150:complications; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications; D006329:Heart Conduction System; D006331:Heart Diseases / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications; D011379:Prognosis