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Figure 3 Survival analysis of non-sudden cardiac death according to the stepwise risk stratification protocol using noninvasive methods (upper panel) and programmed ventricular stimulation (lower panel). PVS was only performed in patients with abnormal HM or EF. HM = Holter ECG monitoring; PVS = programmed ventricular stimulation; EF = left ventricular ejection fraction. p Values derived from Cox regression analysis.
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