title: QRS voltage changes for posterior unipolar chest leads in patients with left ventricular hypertrophy.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D006332:Cardiomegaly / Q000175:diagnosis*; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles; D006801:Humans; D006984:Hypertrophy / Q000175:diagnosis; D008297:Male; D008875:Middle Aged