American Journal of Physiology: Heart & Circulatory Physiology. Dec2003, Vol. 285 Issue 6, pH2500-H2509. 10p. 1 Color Photograph, 1 Black and White Photograph, 2 Charts, 6 Graphs.
American Journal of Physiology: Heart & Circulatory Physiology. Aug2003, Vol. 285 Issue 2, pH597. 10p. 7 Black and White Photographs, 1 Chart, 7 Graphs.