[1] Emory Univ, Sch Med, Atlanta, GA 30033 USA
[2] Medstar Res Inst, Washington, DC USA
[3] Univ Penn, Sch Med, Prevent Cardiol & Lipid Clin, Philadelphia, PA 19104 USA
[4] Tufts Univ, Sch Med, Lipid Metab Lab, Boston, MA 02111 USA
[5] Tufts Univ, Human Nutr Res Ctr Aging, Boston, MA 02111 USA
[6] Tufts Univ, Sch Med, Lipid Heart Dis Prevent Program, Boston, MA 02111 USA