1. Office of the Dean, College of Agriculture, Iowa State University, Ames, IA 50011-1050
2. Mathematica Policy Research, Inc., Washington, DC
3. Life Sciences Research Office, Bethesda, MD
4. Epidemiology Program, Tufts University, U.S. Department of Agriculture-HNRC on Aging, Boston, MA
5. Department of Nutritional Sciences, Pennsylvania State University, University Park, PA
6. Department of Ophthalmology, University of Wisconsin, Madison, WI
7. Food and Nutrition Board, Institute of Medicine, National Academy of Sciences, Washington, DC