1. Division of Infectious Diseases, Department of Internal Medicine, University of Kentucky Medical Center, 3101 Beaumont Centre Circle, Lexington, KY 40513, USA
2. Gill Heart and Vascular Institute, University of Kentucky Medical Center, Lexington, KY, USA
3. Division of Infectious Diseases, Department of Internal Medicine, University of Kentucky Medical Center, Lexington, KY, USA
4. Division of Cardiovascular and Thoracic Surgery, University of Kentucky Medical Center, Lexington, KY, USA