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Spontaneous beat-to-beat variation of PR interval in normal children

✍ Scribed by Richard L. Donnerstein; William A. Scott; Thomas R. Lloyd

Book ID
113116968
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
239 KB
Volume
66
Category
Article
ISSN
0002-9149

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Beat-to-beat variation in echocardiograp
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## Abstract M‐mode echocardiography was used to explore the extent of spontaneous variation in left ventricular dimensions and indices of systolic and diastolic function. Extended records made in 26 subjects at rest were digitized and analyzed by computer. We found considerable beat‐to‐beat variati