1. Contrast echocardiography in valvular regurgitation;Meltzer,1981
2. Analysis of right heart blood flow from contrast patterns on the echocardiogram;Bonzel,1981
3. Contrast echocardiographic evaluation of changes in flow velocity in the right side of the heart;Shilna;Circulation,1981
4. 2D echo-range gated Doppler measurements of cardiac output and stroke volume in open chest dogs (abstr);Friedman;Circulation,1980
5. Controlled quantitative assessment of pulmonary and arotic flow by range gated pulsed Doppler in children with heart disease (abstr);Hoenecke;Circulation,1981