1. Department of Pediatrics, Center for Pediatric Obesity Medicine, University of Minnesota Medical School, Minneapolis, MN, USA
2. Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
3. Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, MN, USA
4. School of Public Health, University of Minnesota, Minneapolis, MN, USA