1 Kaufman Center for Heart Failure Treatment and Recovery, Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio, USA. Electronic address: vesta2@ccf.org.
2 Division of Cardiovascular Medicine, Krannert Cardiovascular Research Center, Indiana University School of Medicine, Indianapolis, Indiana, USA.
3 Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
4 Division of Cardiology, University of Colorado Medical School, Aurora, Colorado, USA; Colorado Prevention Center, Aurora, Colorado, USA.