1. From the Lipid Metabolism Laboratory (M.E.B., J.J.O., J.M.O., T.M., J.R.M., E.J.S.), JM-USDA-Human Nutrition Research Center on Aging at Tufts University and Department of Medicine, New England Medical Center, Boston, Mass; the Department of Veterans Affairs Cooperative Studies Program Coordinating Center (D.C.), West Haven, Conn; the Department of Biochemistry (J.D.O.), North Carolina State University, Raleigh; the Center for Chronic Disease Outcomes Research (H.B.R.), Veterans Affairs Medical...