1. Department of Anatomy & Neurobiology; University of Tennessee Health Science Center, and Research Service (151), Veterans Affairs Medical Center; Memphis TN 38104
2. Departments of Urology and Microbiology, Kaplan Comprehensive Cancer Center; New York University School of Medicine; New York NY 10016
3. Veterans Affairs Medical Center in Manhattan; New York NY 10010
4. Department of Ecology and Evolution; State University of New York; Stony Brook NY 11794
5. Department of Microbiology; University of Washington; Seattle WA 98195