[1] Baylor Coll Med, Childrens Nutr Res Ctr, Dept Pediat, Houston, TX 77030 USA
[2] Math Policy Res, Cambridge, MA USA
[3] Math Policy Res, Washington, DC USA
[4] Univ N Carolina, Dept Epidemiol, Chapel Hill, NC USA
[5] Univ N Carolina, Dept Nutr, Chapel Hill, NC USA
[6] Tufts Univ, Sch Med, Boston, MA 02111 USA
[7] Tufts Univ, Friedman Sch Nutr Sci & Policy, Boston, MA 02111 USA
[8] Tufts Univ, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
[9] Nestle Infant Nutr, Global Meals & Drinks, Florham Pk, NJ USA