1. From the Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (A.G., D.L.B.); VA Eastern Colorado Healthcare System, University of Colorado Denver, Aurora, CO (T.T.T., M.A.S., G.K.G., J.R.), VA Medical Center, University of Illinois at Chicago (M.V.); Seattle VA Medical Center, Seattle, WA (C.L.B.), VA Boston Healthcare System, West Roxbury, MA (D.L.B.); and Durham VA Medical Center, Duke Clinical Research Institute, Durham, NC (S.V.R.).