1. Department of Exercise and Nutrition Sciences, Milken Institute School of Public HealthThe George Washington University 950 New Hampshire Avenue NW Washington DC 20052 USA
2. Division of EndocrinologyGeorge Washington University School of Medicine 2120 L. St NW, Suite 450 Washington DC 20037 USA
3. Computational Biology Institute, Milken Institute School of Public HealthThe George Washington University 800 22nd Street, NW, 7000 Science and Engineering Hall Washington DC 20052 USA
4. Department of PediatricsEmory University School of Medicine 2015 Uppergate Dr., Room 433A Atlanta GA 30322 USA
5. Intramural Research ProgramNIDDK, NIH (PJW, KIR) 9000 Rockville Pike, Building 10, Room 8C432A Bethesda MD 20892 USA
6. Department of Biostatistics and Bioinformatics, Milken Institute School of Public HealthThe George Washington University 950 New Hampshire Avenue NW Washington DC 20052 USA
7. Department of Kinesiology, School of Health and Human ServicesIndiana University Purdue University Indianapolis PE 266, 901 W. New York Street Indianapolis IN 46202 USA