Affiliation: | ∗ Penn Cardiovascular Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania;† Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania;‡ Robert Wood Johnson Medical School, Piscataway, New Jersey;§ Division of Cardiology, University of Utah, Salt Lake City, Utah;‖ Cardiovascular Medicine, University of Wisconsin, Madison, Wisconsin;¶ Mayo Clinic College of Medicine, Rochester, Minnesota;# Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland |