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ECG of sinus rhythm to Normal electrocardiogram (ECG)
ECG of sinus rhythm to Normal electrocardiogram (ECG)
Normal sinus rhythm at a rate of 71 beats/minute, a P wave axis of 45°, and a PR interval of 0.15 seconds.
ECG: electrocardiogram.
Courtesy of Morton Arnsdorf, MD.
Graphic 58149 Version 5.0
