1. Department of Epidemiology, Rollins School of Public Health, Emory University , Atlanta, GA , USA
2. Department of English, College of Arts and Sciences, Emory University, N302 Callaway Memorial Center , Atlanta, GA , USA
3. Department of Internal Medicine, Thomas Roth Sleep Disorders and Research Center, Henry Ford Health System , Novi, MI , USA
4. Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services , Research Triangle Park, NC , USA
5. Intramural Program, National Institute on Minority Health and Health Disparities, National Institutes of Health, Department of Health and Human Services , Bethesda, MD , USA