[1] VA Boston Healthcare Syst, VA Natl Ctr PTSD, Boston, MA 02130 USA
[2] Boston Univ, Sch Med, Dept Psychiat, Boston, MA 02118 USA
[3] USA, Environm Med Res Inst, Natick, MA 01760 USA
[4] Boston Univ, Sch Publ Hlth, Dept Environm Hlth, Boston, MA USA
[5] VA Natl Ctr PTSD, White River Jct, VT USA
[6] Dartmouth Coll, Hitchcock Med Ctr, Dartmouth Med Sch, Dept Psychiat, Hanover, NH 03756 USA
[7] Dartmouth Coll, Hitchcock Med Ctr, Dartmouth Med Sch, Dept Pharmacol, Hanover, NH 03756 USA
[8] USA, Med Res & Mat Command, Dept Psychiat & Behav Sci, Walter Reed Army Inst Res, Silver Spring, MD USA
[9] Boston Univ, Sch Publ Hlth, Dept Biostat, Boston, MA USA
[10] Boston Univ, Dept Psychol, Boston, MA 02215 USA