1. From the Nutritional Immunology Laboratory (SNM, JBB, LSL, and DHH), the Biostatistics Unit (GED), and the Nutritional Epidemiology Program (PJF), Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA; the Department of Pathology, Sackler Graduate School of Biochemical Sciences, Tufts University, Boston, MA (SNM); the Friedman School of N