1. Laney Graduate School, Emory University, Atlanta, Georgia, USA.
2. Division of Nutrition, Physical Activity, and Obesity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
3. Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia, USA.
4. Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.
5. Hubert Department of Global Health, Emory University, Atlanta, Georgia, USA.
6. Grady Memorial Hospital, Atlanta, Georgia, USA.