Analog computer analysis of spatial vectorcardiogram: spatial magnitude, velocity and the acceleration electrocardiography and its clinical applications.
D006332:Cardiomegaly / Q000175:diagnosis; D003202:Computers, Analog; D004562:Electrocardiography; D006331:Heart Diseases / Q000175:diagnosis; D006352:Heart Ventricles; D006801:Humans; D008433:Mathematics; D009203:Myocardial Infarction / Q000175:diagnosis; D014672:Vectorcardiography