title: [A QRS scoring system using the Frank lead vectorcardiogram and its clinical evaluation].
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000503:physiopathology*; D013318:Stroke Volume; D014672:Vectorcardiography