1. Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts (J.E.M., S.S.B.)
2. Fred Hutchinson Cancer Research Center, Seattle, Washington (A.K.A., G.L.A., R.L.P.)
3. City of Hope National Medical Center, Duarte, and Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California (R.T.C.)
4. National Heart, Lung, and Blood Institute, Bethesda, Maryland (J.E.R.)
5. MedStar Health Research Institute, Bonita Springs, Florida, and Georgetown-Howard Universities, Washington, DC (B.V.H.)
6. Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, Arizona (C.A.T.)
7. Stanford Prevention Research Center, Stanford, California (M.L.S.)
8. University of Florida College of Medicine-Jacksonville, Jacksonville, Florida (A.M.K.)
9. David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California (C.J.C.)
10. Alpert Medical School of Brown University, Providence, Rhode Island (C.B.E., S.L.)
11. Stanford University, Stanford, California (V.W.H.)
12. Brown University, Providence, Rhode Island; Indiana University, Bloomington, Indiana (J.L.)
13. Albert Einstein College of Medicine, Bronx, New York (T.R.)
14. University of California, San Diego School of Medicine, La Jolla, California (A.H.S.)
15. University of Kentucky, Lexington, Kentucky (G.W.)
16. University at Buffalo, the State University of New York, Buffalo, New York (J.W.)