title: Intermittency of bundle branch block in acute myocardial infarction.
mesh_terms: D002037:Bundle-Branch Block / Q000175:diagnosis*; D006327:Heart Block / Q000517:prevention & control*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications*; D010138:Pacemaker, Artificial; D011379:Prognosis; D012008:Recurrence