| Affiliation: | 1. Department of Preventive Medicine and Childhood Obesity Research Center, University of Southern California, Los Angeles, California, USA;2. Division of Cancer Prevention, National Cancer Institute, Bethesda, Maryland, USA;3. Department of Nutritional Sciences, University of Texas at Austin, Austin, Texas, USA;4. Department of Pediatrics, University of Southern California, Los Angeles, California, USA;5. Center for Economic and Social Research, University of Southern California, Los Angeles, California, USA |
