1. Department of Health Promotion, Center for Reducing Health Disparities, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA;
2. Department of Health Services Research and Administration, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA;
3. Department of Health Promotion, Social and Behavioral Health, Center for Reducing Health Disparities, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA