1. Department of Global Health, The Milken Institute School of Public Health, The George Washington University, Washington , DC 20052 USA.
2. Department of Exercise and Nutrition Sciences, The Milken Institute School of Public Health, The George Washington University, Washington, DC 20052 USA.
3. USDA Children’s Nutrition Research Center, Baylor College of Medicine, Houston, TX 77030, USA.
4. Computational Biology Institute, Departments of Biostatistics and Bioinformatics, The Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA.
5. Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16801, USA.
6. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, The George Washington University School of Medicine and Health Sciences, Washington, DC 20052, USA.