1. Berwing, K. andSchlepper, M. (1988) Echocardiographic imaging of the left ventricle by peripheral intravenous injection of echo contrast agent.Am. Heart J.,115, 399–408.
2. Butler, B. D. andHills, B. A. (1979) The lung as a filter for microbubbles.J. Appl. Physiol.: Respirat. Environ. Exercise Physiol.,47, 537–543.
3. Butler, B. D. andHills, B. A. (1981) Effect of excessive oxygen upon the capability of the lungs to filter gas emboli. Underwater Physiology VII. Proc. 7th Symp. on Underwater Physiology.Bachrach, A. J. andMatzen, M. M. (Eds.), Undersea Medical Society Inc., Bethesda, 95–102.
4. Butler, B. D. andHills, B. A. (1985) Transpulmonary passage of venous air emboli.J. Appl. Physiol.,59, 543–547.
5. Butler, B. D. andKatz, J. (1988) Vascular pressures and passage of gas emboli through the pulmonary circulation.Undersea Biomed. Res.,15, 203–209.