1. Left ventricular volume characteristics in right ventricular volume overload: Total anomalous pulmonary venous connection and large atrial septal defects;Graham;Circulation,1969
2. Effect of intracardiac blood on the spatial vectorcardiogram. Part I. Results in the dog;Nelson;Circ. Res.,1972
3. Electrical effects of a highly conductive mass inside the thorax;Voukydis;Am. Heart J.,1973
4. The spatial magnitude vector in atrial septal defect;Nelson;Australas. Ann. Med.,1970
5. A lead system for direction and magnitude of the heart vector;Nelson,1971