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Figure 3 Temporal Heterogeneity of Alternans
Epicardial repolarization alternans recorded from 1 patient during atrial pacing at cycle length 600 ms. A surface QRS complex and JT segment from lead II is shown at the top. The k value is plotted as a function of the JT interval for all 16 epicardial electrodes (Epi) along the anteroseptal ventricle.
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