title: Multigroup classification by means of multivariate analysis. Comparison of an "optimal" 9-lead system and the frank leads.
mesh_terms: D006332:Cardiomegaly / Q000175:diagnosis*; D004562:Electrocardiography / Q000145:classification*; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis*; D013223:Statistics as Topic