title: [QRS wave of the spatial magnitude electrocardiogram in left ventricular loading disease].
mesh_terms: D001022:Aortic Valve Insufficiency / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D014672:Vectorcardiography