1. Stroger Hospital of Cook County, Chicago, Illinois
2. University of California–Los Angeles, Los Angeles
3. National Institute of Child Health and Human Development, Bethesda, Maryland
4. New York University, New York
5. Westat, Rockville, Maryland
6. University of California–San Francisco, San Francisco
7. Indiana University, Indianapolis
8. Fenway Institute, Boston, Massachusetts
9. University of Colorado–Denver, Denver
10. Brown University, Providence, Rhode Island
11. Ruth Rothstein CORE Center, Chicago, Illinois
12. Gilead Sciences, Foster City, California
13. University of Alabama–Birmingham, Birmingham