1. Minneapolis VA Health Care System and University of Minnesota, Minneapolis, Minnesota (H.A.F., J.R.M., L.S.H., B.C.T., T.J.W.)
2. Minneapolis VA Health Care System, Minneapolis, Minnesota (E.J.L., R.M., M.A.M.)
3. University of Iowa Carver College of Medicine, Iowa City, Iowa (P.C.S.)
4. University of Minnesota, Minneapolis, Minnesota (K.M.T., M.L.F., P.J.D., V.A.N., M.B., W.N., J.M.O., M.B.)
5. Hennepin Healthcare and Minneapolis VA Health Care System, Minneapolis, Minnesota (K.M.S.)