Affiliation: | 1. Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC;2. Department of Medicine, Duke University School of Medicine, Durham, NC;3. Novartis Pharmaceuticals Corporation, East Hanover, NJ;4. Ahmanson-UCLA Cardiomyopathy Center, University of California, Los Angeles, CA;5. Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, IN |