1. Data processing in cardiovascular physiology with particular reference to roentgen videodensitometry;Wood,1964
2. Roentgen image-intensifier, television, recording system for dynamic measurements of roentgen density for circulatory studies;Sturm,1971
3. Effect of varying ventricular function of extrasystolic potentiation on closure of the mitral valve;Vandenberg;Amer J Cardiol,1971
4. Cardiovascular Sound in Health and Disease;McKusick,1958
5. Effect of atrial systole on ventricular pressure and closure of A-V valves;Little;Amer J Physiol,1951