title: The relation of the conventional electrocardiogram to orthogonal leads. With special reference to ventricular hypertrophy.
mesh_terms: D006332:Cardiomegaly / Q000175:diagnosis*; D003201:Computers; D004562:Electrocardiography; D006321:Heart / Q000502:physiology; D006352:Heart Ventricles; D006801:Humans; D008722:Methods; D008961:Models, Structural; D014672:Vectorcardiography