[1] Vet Affairs VA Boston Healthcare Syst, Boston, MA USA
[2] Boston Univ, Sch Med, Dept Psychiat, Boston, MA 02118 USA
[3] George Mason Univ, Dept Psychol, Fairfax, VA 22030 USA
[4] Boston Coll, Dept Counseling Dev & Educ Psychol, Lynch Sch Educ, Chestnut Hill, MA 02167 USA
[5] Georgetown Univ, Dept Psychiat, Washington, DC USA
[6] VA Boston Healthcare Syst, Natl Ctr PTSD, Boston, MA 02130 USA