[1] Ottawa Hlth Res Inst, Clin Epidemiol Program, Ottawa, ON K1Y 4E9, Canada
[2] Univ Ottawa, Sch Human Kinet, Ottawa, ON, Canada
[3] Univ Ottawa, Dept Med, Ottawa, ON, Canada
[4] Vanderbilt Univ, Dept Mol Physiol & Biophys, Nashville, TN USA
[5] Tufts Univ, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
[6] Univ Missouri, Sch Med, Dept Community & Family Med, Truman Med Ctr Lakehead, Kansas City, MO 64108 USA