1. University of Veterans Affairs Puget Sound Health Care System (K.E.F.-S., J.O., D.E.C.), Seattle, Washington 98108
2. University of Washington School of Medicine (K.E.F.-S., J.O., H.S.C., D.E.C.), Seattle, Washington 98195
3. University of Arts and Sciences (Chemistry) (C.E.P.), Charlottesville, Virginia 22903
4. University of Virginia Schools of Medicine (J.L., B.D.G., M.O.T.), Charlottesville, Virginia 22903