1. Tennessee State University, Nashville, TN, USA
2. Department of Family and Community Medicine, Baylor College of Medicine, Houston, TX, USA
3. Meharry Medical College, Nashville, TN, USA
4. Division of Epidemiology, Vanderbilt University, Nashville, TN, USA
5. Counseling Psychology, Tennessee State University, Nashville, TN, USA
6. Department of Medicine - Neurology, University of Massachusetts Medical School, Worcester, MA, USA