1. Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama.
2. School of Nursing, University of Alabama at Birmingham, Birmingham, Alabama.
3. School of Health Related Professions, University of Alabama at Birmingham, Birmingham, Alabama.
4. Division of Infectious Diseases, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.
5. Department of Health Behavior, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama.
6. Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.