1. Section of Cardiovascular Medicine, Department of Medicine University of Utah Salt Lake City Utah
2. Section of Cardiovascular Medicine, Department of Medicine Yale University School of Medicine New Haven Connecticut
3. Division of Cardiology University of North Carolina Chapel Hill North Carolina
4. Department of Cardiovascular Sciences, Brody School of Medicine East Carolina University Greenville North Carolina
5. Cardiovascular Research Center Icahn School of Medicine at Mount Sinai New York New York
6. Department of Cell and Molecular Physiology Loyola University Maywood Illinois
7. Division of Cardiovascular Medicine University of Wisconsin School of Medicine and Public Health Madison Wisconsin