Types of left bundle branch block and their clinical significance.
D000368:Aged; D000818:Animals; D002037:Bundle-Branch Block / Q000175:diagnosis* / Q000209:etiology; D002648:Child; D004285:Dogs; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006331:Heart Diseases / Q000150:complications; D006801:Humans; D008875:Middle Aged