C Chichovsky

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A survey is made of present-day methods proving myocardial failure, and a new indirect method is set forth based on apex-cardiography. After consideration of the physiological variations of the 'a' wave and OF interval, they are checked in an after-exercise state. It is established that the slow normalization of 'a' wave, which follows the restoration of(More)
The results from 8,000 investigations and comparative studies between mean and systolic pressures in the left atrium and changes in the diastole portion of the apex-cardiogram are presented. A correlation is established between the mean pressure and OF duration for post-puberty ages. A similar dependence is also found between the amplitude value of the(More)
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