1. Department of Epidemiology and Environmental Health (formerly the Department of Social and Preventive Medicine); School of Public Health and Health Professions; University at Buffalo, State University of New York; Buffalo NY USA
2. Johns Hopkins Global Center on Childhood Obesity; Bloomberg School of Public Health; Johns Hopkins University; Baltimore MD USA
3. Department of Health, Behavior and Society; Bloomberg School of Public Health; Johns Hopkins University; Baltimore MD USA
4. Department of Medicine; Johns Hopkins University School of Medicine; Baltimore MD USA
5. Department of Maternal and Child Health; School of Public Health; Sun Yat-Sen University; Guangzhou China
6. Department of Health Policy and Management; Bloomberg School of Public Health; Johns Hopkins University; Baltimore MD USA
7. Division of General Pediatrics and Adolescent Medicine; Johns Hopkins School of Medicine; Baltimore MD USA
8. Department of Surgery; Johns Hopkins University School of Medicine; Baltimore MD USA