1. Washington University School of Medicine, St. Louis, Missouri (P.D., W.K., M.A.P., A.A.E., A.H., K.H., B.K., M.J.L., Z.L., L.E.M., D.C.P., R.E.S., S.E.S., M.T., M.G., S.A., S.A., M.K., L.M., D.N., S.C., M.A.C., J.A.O., R.M.P., G.F.W., S.P.W., W.J.B., A.H.E., A.H.K.)
2. University of California San Francisco, San Francisco, California (M.Y., A.B.C., E.G.D., D.P., N.P., J.G., K.E.T., P.K., M.M.)
3. University of California San Francisco and San Francisco VA Health Care System, San Francisco, California (L.S.G., M.C.N.).