1. Department of Pharmacy, University of North Carolina Medical Center, 101 Manning Drive, CB 7600, Chapel Hill, NC 27514, USA
2. UK Healthcare, 1000 S. Limestone, Room H110, Lexington, KY 40536, USA
3. Division of Cardiology, Department of Medicine, University of North Carolina, Burnett-Womack Building, 160 Dental Circle, CB# 7075, Chapel Hill, NC 27599, USA