1. Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
2. Department of Environmental and Occupational Health Sciences, National Jewish Health, Denver, Colorado, USA
3. Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
4. Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
5. Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
6. Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
7. National Center for Environmental Health, U.S. Centers for Disease Control and Prevention, Atlanta, Georgia, USA
8. Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA