1. Division of Public Health Sciences, Wake Forest University Health Sciences, Winston Salem, NC 27101, USA
2. Department of Public Health Sciences, University of Virginia, Charlottesville, VA 22908, USA
3. Rudd Center for Food Policy & Health, and Department of Human Development and Family Sciences, University of Connecticut, Mansfield, CT 06103, USA
4. Department of Pediatrics, Wake Forest School of Medicine, Winston Salem, NC 27101, USA