1. Dorn Research Institute, Columbia VA Health Care System, Columbia, South Carolina & Department of Clinical Pharmacy and Outcomes Sciences, College of Pharmacy, University of South Carolina, Columbia, South Carolina, USA
2. Dorn Research Institute, Columbia VA Health Care System, Columbia, South Carolina & Department of Epidemiology & Biostatistics, University of South Carolina, Columbia, South Carolina, USA
3. Department of Ophthalmology, University of Virginia, Charlottesville, Virginia, USA