1. Department of Family and Community Medicine, Baylor College of Medicine, Houston, TX, USA
2. Sociology Department, Tennessee State University, Nashville, TN, USA
3. Department of Family and Community Medicine, Meharry Medical College, Nashville, TN, USA
4. Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA
5. Department of Political Science, Texas Tech University College of Arts and Sciences, Lubbock, TX, USA