title: A vectorcardiographic study of right ventricular systolic overloading with the Frank system.
mesh_terms: D006352:Heart Ventricles; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000175:diagnosis*; D008946:Mitral Valve Stenosis / Q000175:diagnosis*; D011666:Pulmonary Valve Stenosis / Q000175:diagnosis; D014672:Vectorcardiography