Population
71 normal subjects
Design
Cross-sectional
Authors
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May reflect common atrial instability in healthy subjects; hypothesis-generating and should not yet change practice.
Computer analysis of ECG signals reveals an unexpectedly high incidence of spontaneous P-wave variations in normal subjects, suggesting that normal atrial excitation is commonly an unstable or metastable process.
Brody et al. (1967) studied this question.
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