[1] Durham VA Hlth Care Syst, Ctr Innovat Accelerate Discovery & Practice Transf, Durham, NC USA
[2] Durham VA Hlth Care Syst, Dept Emergency Med, Durham, NC USA
[3] Duke Univ, Div Emergency Med, Sch Med, Durham, NC USA
[4] Duke Univ, Dept Psychiat & Behav Sci, Sch Med, Durham, NC USA
[5] Duke Univ, Dept Populat Hlth Sci, Sch Med, Durham, NC USA
[6] Duke Univ, Dept Med, Sch Med, Durham, NC USA
[7] Duke Univ, Ctr Study Human Aging & Dev, Sch Med, Durham, NC USA
[8] Durham VA Hlth Care Syst, Geriatr Res Educ & Clin Ctr, Durham, NC USA
[9] Durham VA Hlth Care Syst, 411 Chapel Hill St, Durham, NC 27701 USA