1. University of Washington, Seattle, Washington (R.M.N., J.C.D., J.M.S., B.M.W., F.M.A., R.J.F., M.M.K., H.M.C.)
2. Brown University, Providence, Rhode Island (I.B.W.)
3. Harvard Medical School and Fenway Institute, Boston, Massachusetts (K.H.M.)
4. University of Miami, Miami, Florida, and Fenway Institute, Boston, Massachusetts (S.A.S.)
5. University of Alabama at Birmingham, Birmingham, Alabama (M.J.M., M.S.S.)
6. University of California, San Diego, San Diego, California (W.C.M.)
7. University of California, San Francisco, San Francisco, California (K.A.C.)
8. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (J.J.E., S.N.)
9. Johns Hopkins University, Baltimore, Maryland (R.D.M., B.L.)
10. Case Western Reserve University, Cleveland, Ohio (B.R.)