[1] Harvard Univ, Sch Med, Dept Ambulatory Care & Prevent, Obes Prevent Program, Boston, MA 02215 USA
[2] Harvard Pilgrim Hlth Care, Boston, MA 02215 USA
[3] Cincinnati Childrens Hosp, Med Ctr, Div Gen & Community Pediat, Cincinnati, OH USA
[4] Harvard Univ, Sch Publ Hlth, Harvard Prevent Res Ctr, Boston, MA 02215 USA
[5] Nemours Hlth & Prevent Serv, Ctr Childrens Hlth Innovat, Newark, DE USA
[6] Univ N Carolina, Dept Nutr, Chapel Hill, NC USA