1 Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, 984388 Nebraska Medical Center, Omaha, NE, 68198-4388, USA. balkissa.ouattara@unmc.edu.
2 Department of Health Promotion, College of Public Health, University of Nebraska Medical Center, 986075 Nebraska Medical Center, Omaha, NE, 68198-6075, USA.
3 Department of Health Promotion, Center for Reducing Health Disparities, College of Public Health, University of Nebraska Medical Center, 984340 Nebraska Medical Center, Omaha, NE, 68198-4340, USA.
4 Department of Epidemiology, College of Public Health, University of Nebraska Medical Center, 984395 Nebraska Medical Center, Omaha, NE, 68198-4395, USA.