1. Research Service, Cincinnati Veterans Administration Medical Center, Cincinnati, OH 45220
2. Division of Immunology and Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267
3. Genome Research Institute, University of Cincinnati, Cincinnati, OH 45227
4. Division of Allergy and Immunology and Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
5. International Centre for Genetic Engineering and Biotechnology and Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town 7925, South Africa
6. Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Beltsville, MD 20705