1. Stroke Program Department of Neurology University of Texas‐Houston Memorial Hermann Medical Center Houston Texas 77030
2. Department of Neurology School of Medicine University of Alabama at Birmingham Birmingham Alabama 35294
3. Department of Epidemiology School of Public Health University of Alabama at Birmingham Birmingham Alabama 35294
4. Health Services and Outcomes Research Center for Outcome and Effectiveness Research and Education (COERE) University of Alabama at Birmingham Birmingham Alabama 35294
5. Center of Excellence in Comparative Effectiveness Research for Eliminating Disparities (CERED) Minority Health and Health Disparities Research Center (MHRC) University of Alabama at Birmingham Birmingham Alabama 35294
6. Department of Clinical Epidemiology and Biostatistics University of Pennsylvania Philadelphia Pennsylvania 19104
7. Department of Emergency Medicine University of Pennsylvania Philadelphia Pennsylvania 19104