1. Human Biology Division (J.P.D., E.M., P.S.N., B.M.), Fred Hutchinson Cancer Research Center, Seattle, Washington 98109;
2. Department of Medicine (J.P.D., C.C.S., E.M., P.S.N., B.M., S.R.P.), University of Washington, Seattle, Washington 98195;
3. University of California Los Angeles (J.W., P.C.), Los Angeles, California 90095;
4. VA Puget Sound Health Care System (K.H., S.R.P.) Seattle, Washington 98108;
5. Urology Department (W.J.E., D.W.L., J.M.C., B.L.D.), University of Washington, Seattle, Washington 98195;
6. Virginia Mason Medical Center (J.M.C.), Seattle, Washington 98101