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June 26, 1943

Variaciones respiratorias del electrocardiograma

JAMA. 1943;122(9):641. doi:10.1001/jama.1943.02840260069034

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This is a well organized monograph in which the author emphasizes the importance of changes in the electrocardiogram during a deep inspiration and contends that an electrocardiographic study is not complete unless this is taken into consideration. This leading idea is supported by numerous examples and illustrated by excellent illustrations.

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