[Phonocardiography in diagnosis of the heart].
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Electrocardiography↗
Biomedical subjects
K HOLLDACK
Publications and source records attributed to K HOLLDACK.
[The significance of the "transformation and increased pressure phases" for heart action].
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Heart↗
[Causes of retardation and amplification of the first heart tone in mitral stenosis and absolute arrhythmia].
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Arrhythmias, Cardiac↗