1. Center for Reducing Health Disparities, College of Public Health, University of Nebraska, Medical Center, Omaha, NE, USA
2. Department of Health Promotion, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
3. Department of Epidemiology, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
4. Department of Health Services Research & Administration, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
5. Department of Biostatistics, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
6. Behavioral and Geriatric Neurology Program, Department of Neurological Sciences, University of Nebraska Medical Center, Omaha, NE, USA