1. Veterans Administration Western New York Healthcare System, Buffalo, New York
2. Department of Medicine, the University at Buffalo-State University of New York, Buffalo, New York
3. Department of Microbiology and Immunology, the University at Buffalo-State University of New York, Buffalo, New York
4. the Witebsky Center for Microbial Pathogenesis, Buffalo, New York
5. Department of Structural Biology, the University at Buffalo-State University of New York, Buffalo, NY
6. Hauptman-Woodward Medical Research Institute, Buffalo, New York