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Figure 5 The cardiac event-free rate curves by Kaplan-Meier analysis in patients with chronic heart failure, according to a combination of abnormal washout rate (WR) and normalized very-low-frequency power (n-VLFP). The cardiac event-free rate was significantly lower in patients with both an abnormal WR and n-VLFP than in those with both a normal WR and n-VLFP.
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