title: Vectorcardiographic study of QRS in patients with transvenous pacemakers and myocardial infarction.
mesh_terms: D000328:Adult; D000368:Aged; D002037:Bundle-Branch Block / Q000175:diagnosis; D002318:Cardiovascular Diseases / Q000503:physiopathology; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000503:physiopathology*; D010138:Pacemaker, Artificial; D014672:Vectorcardiography