1. Ultrasonic characterization of Albunex, a new contrast agent;Bleeker;J. Acoust. Soc. Am.,1990
2. Contrast echocardiography: Pulmonary transmission and myocardial perfusion imaging using surfactant stabilized microbubbles;Bommer;Circulation,1981
3. Gelatin encapsulated nitrogen microbubbles as ultrasonic contrast agents;Carroll;Invest. Radiol.,1980
4. Polygelin colloid solution as an echocardiographic contrast agent;Ernst;J. Cardiovasc. Ultrasonogr.,1984
5. Correlation of left heart high blood velocities measured with continuous-wave Doppler and contrast echocardiography;Ernst;J. Cardiovasc. Ultrasonogr.,1988