Left bundle branch block.
D000328:Adult; D000368:Aged; D002037:Bundle-Branch Block / Q000175:diagnosis* / Q000209:etiology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007494:Ireland; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D013223:Statistics as Topic