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Figure 1 Comparison of percentage of mortality attributable to sudden cardiac death in Comparison of Medical Therapy, Pacing, and Defibrillation in Heart Failure (COMPANION) trial and in Cardiac Resynchronization-Heart Failure (CARE-HF) study. Open bars = the COMPANION trial; solid bars = the CARE-HF study. CRT-D = cardiac resynchronization therapy pacemaker plus back-up defibrillation (implantable cardiac defibrillator); CRT-P = cardiac resynchronization therapy pacemaker.
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