1. The Johns Hopkins Global Center on Childhood Obesity, Department of International Health, Center for Human Nutrition, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
2. Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen, Denmark
3. Center for Human Nutrition, Colorado Nutrition Obesity Research Center, University of Colorado, Boulder, CO
4. Division of Nutrition, Physical Activity, and Obesity, Centers for Disease Control and Prevention, Atlanta, GA