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Figure 2 Distribution of Tachyarrhythmias and Shock Therapies

(A) Number of patients with episodes, and distribution of ventricular tachyarrhythmia episodes occurring during the 12 months after implant. (B) Trend of shock therapies delivered and patients with shock during the observation period. *p < 0.05 versus month 1, on the basis of chi-square analysis.