1. University of Michigan, Ann Arbor, Michigan (J.J., P.C., J.T., R.M.)
2. Yale University, New Haven, Connecticut (T.R.H.)
3. Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC (D.T.L.)
4. National Cancer Institute, Bethesda, Maryland (E.J.F.)
5. Cornerstone Systems Northwest, Lynden, Washington (L.C., J.C.)
6. Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts (C.Y.K.)