1. Medical Service, Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida2Division of Cardiovascular Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville
2. Department of Cardiovascular Medicine, Cleveland Clinic, Weston, Florida
3. Medical Service, Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida4Division of General Internal Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville
4. Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia