1. Penn State College of Medicine, Hershey, Pennsylvania, USA.
2. Pediatrics and Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania, USA.
3. Jacobs School of Medicine and Biomedical Sciences, Center for Ingestive Behavior Research, University at Buffalo, Buffalo, New York, USA.
4. Nutritional Sciences, Penn State University, University Park, Pennsylvania, USA.
5. Center for Childhood Obesity Research, Penn State University, University Park, Pennsylvania, USA.