1. Center for Childhood Obesity Research, The Pennsylvania State University, University Park, PA, USA.
2. Evaluation Sciences Unit, Division of Primary Care Population Health, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.
3. Center for Nutrition and Weight Management, Geisinger, Danville, PA, USA.
4. Nemours Children's Health (Emeritus), Wilmington, DE, USA.
5. Pediatrics and Public Health Sciences, Penn State College of Medicine, Hershey, PA, USA.
6. Population Health Sciences, Obesity Institute, Geisinger, Danville, PA, USA.