1 CUSDA/ARS Children's Nutrition Research Center, Agricultural Research Service, US Department of Agriculture, Department of Pediatrics, Baylor College of Medicine, Houston, TX.
2 Department of Applied Health Science, School of Public Health - Bloomington, Indiana University, Bloomington, IN.
3 Department of Biostatistics, School of Public Health, University of Alabama at Birmingham, Birmingham, AL.
4 Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN.
5 Department of Health Behavior, School of Public Health, University of Alabama at Birmingham, Birmingham, AL.
6 Department of Mathematical Sciences, United States Military Academy, West Point, NY.
7 Department of Epidmiology and Biostatistics, School of Public Health - Bloomington, Indiana University, Bloomington, IN.