1. Department of Clinical Pharmacy & Outcomes Sciences, South Carolina College of Pharmacy, University of South Carolina, 715 Sumter Street (CLS 314b), Columbia, SC 29208-0001, USA
2. Dorn Research Institute, WJB Dorn Veterans Affairs Medical Center, Columbia, SC 29209, USA
3. Department of Epidemiology & Biostatistics, Biostatistics Division, University of South Carolina, 1600 Hampton Street, Suite 507, Room 539, Columbia, SC 29208-3400, USA