1. Laboratory of Immunology
2. Malaghan Institute of Medical Research, Wellington, New Zealand
3. Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
4. Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215
5. Nutrient Requirements and Functions Laboratory, Beltsville Human Nutrition Research Center, U.S. Department of Agriculture, Beltsville, MD 20705
6. Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267