%0 Journal Article %T Measurement of Left Ventricular Ejection Fraction by Mechanical Cross-Sectional Echocardiography %A GOSINK, BARBARA %J Circulation %V 59 %N 6 %P 1196–1206-1196&ndash-ndash;1206-1196–1206 %@ 0009-7322 %D 1979-06-01 %~ DeepDyve