Affiliation: | a Division of Nephrology, Duke University Medical Center, Durham, NC b Duke Clinical Research Institute, Durham, NC c Division of Cardiovascular Medicine, Duke University Medical Center, Durham, NC d MassPro, Waltham, MA e Baylor Heart and Vascular Institute, Baylor University Medical Center, Dallas, TX f Cleveland Clinic Foundation, Cleveland, OH g Berkshire Medical Center, Pittsfield, MA h Ahmanson-UCLA Cardiomyopathy Center, University of California, Los Angeles, CA |