1. University of Alabama at Birmingham, Birmingham, AL 35294
2. Los Alamos National Laboratory, Los Alamos, NM 87545
3. University of Massachusetts, Amherst, MA 01002
4. The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
5. Zambia-Emory HIV Research Project, Lusaka, Zambia
6. Emory University, Atlanta, GA 30329
7. Aaron Diamond AIDS Research Center, New York, NY 10016
8. The Rockefeller University, New York, NY 10065
9. Santa Fe Institute, Santa Fe, NM 87501
10. Duke University Medical Center, Durham, NC 27710