title: [Vectorcardiographic studies of left ventricular loading (2)--changes of QRS loop with the development of hypertension].
mesh_terms: D000328:Adult; D000368:Aged; D006332:Cardiomegaly / Q000175:diagnosis*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications*; D008297:Male; D008875:Middle Aged; D014672:Vectorcardiography