1 Division of Cardiovascular Medicine, Department of Medicine, University of Florida College of Medicine, 1600 SW Archer Road, PO Box 100277, Gainesville, FL, 32610-0277, USA.
2 Division of Cardiovascular Medicine, Department of Medicine, University of Florida College of Medicine, 1600 SW Archer Road, PO Box 100277, Gainesville, FL, 32610-0277, USA. [email protected].
3 Cardiology Section, Medical Service, Malcom Randall VA Medical Center, Gainesville, FL, USA. [email protected].