1. Division of Community Health and Human Development, School of Public Health, University of California Berkeley, Berkeley, California;
2. Departments of Nutrition and
3. Social and Behavioral Sciences, and
4. Technische Universität Berlin, Berlin, Germany;
5. Prevention Research Center, Harvard School of Public Health, Boston, Massachusetts;
6. National Institute for Children’s Health Quality, Boston, Massachusetts;
7. Bureau of Community Health and Prevention, Massachusetts Department of Public Health, Boston, Massachusetts; and
8. Division of General Academic Pediatrics, Department of Pediatrics, Massachusetts General Hospital for Children, Boston, Massachusetts