[1] Duke Univ, Dept Psychiat & Behav Sci, Durham, NC 27710 USA
[2] Duke Univ, Dept Community & Family Med, Durham, NC 27710 USA
[3] Univ N Carolina, Dept Psychiat, Chapel Hill, NC USA
[4] Univ Alabama Birmingham, Dept Med, Div Infect Dis, Birmingham, AL 35294 USA