1. Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
2. Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey
3. No longer employed by the National Institute of Allergy and Infectious Diseases
4. Medical Oncology Branch, National Cancer Institute, Bethesda, Maryland
5. National Institutes of Health, Rockville, Maryland
6. Henry M. Jackson Foundation for the Advancement of Military Medicine, Rockville, Maryland