title: Effect of intermittent left bundle branch block on left ventricular performance.
mesh_terms: D001794:Blood Pressure; D002037:Bundle-Branch Block / Q000503:physiopathology*; D002302:Cardiac Output; D004562:Electrocardiography; D005263:Femoral Artery; D006339:Heart Rate; D006352:Heart Ventricles / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure