[1] Tufts Univ, Friedman Sch Nutr Sci & Policy, Dept Nutr Sci, Boston, MA 02111 USA
[2] Tufts Univ, Nutr Epidemiol Program, Boston, MA 02111 USA
[3] Tufts Univ, Jean Mayer USDA Human Nutr Res Ctr Aging, Energy Metab Lab, Boston, MA 02111 USA
[4] Tufts Med Ctr, Inst Clin Res & Hlth Policy Studies, Boston, MA USA
[5] Tufts Med Ctr, Floating Hosp Children, Div Pediat Hematol Oncol, Boston, MA USA
[6] Tufts Univ, Sch Med, Dept Med, Boston, MA 02111 USA
[7] Tufts Univ, Sch Med, Dept Pediat, Boston, MA 02111 USA
[8] Tufts Univ, Sch Med, Dept Publ Hlth & Community Med, Boston, MA 02111 USA
[9] ARS, Baylor Coll Med, USDA, Childrens Nutr Res Ctr, Houston, TX USA