1. Department of Neurology, Augusta University, Augusta, GA, USA
2. The Medical College of Georgia, Augusta University, Augusta, GA, USA
3. Division of Cardiology, Department of Medicine, Augusta University, Augusta, GA, USA
4. The School of Health Professions, University of Kansas, Kansas City, KS, USA
5. Department of Biostatistics and Epidemiology, Augusta University, Augusta, GA, USA