1. Mayo Clinic, Rochester, Minnesota, USA
2. Memorial Sloan Kettering Cancer Center, New York, New York, USA
3. Washington University, Saint Louis, Missouri, USA
4. Stanford University School of Medicine, Palo Alto, California, USA
5. Wadsworth Center, New York State Department of Health, Albany, New York, USA
6. Kent State University, Kent, Ohio, USA
7. American Society for Microbiology, Washington, DC, USA