[1] VA Boston Healthcare Syst, Natl Ctr PTSD, Boston, MA USA
[2] Boston Univ, Dept Psychiat, Chobanian & Avedisian Sch Med, Boston, MA USA
[3] Emory Sch Med, Dept Psychiat & Behav Sci, Atlanta, GA USA
[4] Atlanta VA Med Ctr, Atlanta, GA USA
[5] Leiden Univ, Dept Psychiat, Leiden, Netherlands