1. Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA.
2. Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA.
3. Duke Clinical Research Institute, Durham, NC, USA.
4. Duke Clinical and Translational Science Institute, Durham, NC, USA.
5. Durham Parks and Recreation, Durham, NC, USA.
6. Duke-Margolis Center for Health Policy, Durham, NC, USA.
7. Duke Center for Childhood Obesity Research, Durham, NC, USA.
8. Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC, USA.