1. Department of Microbiology and Immunology and Institute for Molecular Medicine and Infectious Disease
2. Southern Research Institute, Frederick
3. Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
4. Henry M. Jackson Foundation, Mercer Island, Washington
5. Family, Community, and Preventive Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania
6. BIOQUAL, Rockville, Maryland