1. Department of Cardiovascular Medicine; Cleveland Clinic; Cleveland Ohio
2. Cardiovascular Division; Brigham and Women's Hospital; Boston Massachusetts
3. Department of Cardiology; Scripps Translational Science Institute, Scripps Clinic; La Jolla California
4. Department of Medicine; Institut De Cardiologie De Montreal; Montreal Quebec Canada
5. Department of Cardiology; Geisinger Clinic; Danville Pennsylvania
6. Division of Cardiology; University of Florida College of Medicine; Jacksonville Florida