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A novel contrast imaging technique has been developed for use with microbubble contrast agents. It employs two acoustic fields: there is an excitation field for conditioning microbubbles and an imaging field for detecting microbubbles. The maximum increases (due to microbubble conditioning) in scattered first and second harmonic signals were 14.5 and 16 dB,(More)
Through the use of the Limulus test research has been carried out on gram-negative endotoxin in patients with hepatic cirrhosis, chronic hepatitis, acute hepatitis, and in a control group. The positivity of this test in patients with cirrhosis and chronic hepatitis was 93.3% and in cases of acute hepatitis it was 90.9%. The effect of the combined(More)