[1] Tufts Univ, Jean Mayer USDA Human Nutr Res Ctr Aging, Obes & Metab Lab, Boston, MA 02111 USA
[2] Univ N Carolina, Dept Nutr, Chapel Hill, NC USA
[3] Stanford Univ, Div Endocrinol, Palo Alto, CA 94304 USA
[4] VA Palo Alto Hlth Care Syst, Palo Alto, CA USA
[5] Univ Colorado, Dept Obstet & Gynecol, Div Reprod Sci, Denver, CO 80202 USA
[6] Boston Univ, Sch Med, Dept Med, Sect Endocrinol Diabet & Nutr, Boston, MA 02118 USA
[7] Hokkaido Univ, Grad Sch Med, Dept Internal Med 2, Sapporo, Hokkaido, Japan
[8] Univ Minnesota, Dept Food Sci & Nutr, St Paul, MN USA