1. Kessler RC, Sonnega A, Bromet E, Hughes M, Nelson CB. Posttraumatic stress disorder in the National Comorbidity Survey. Arch Gen Psychiatry. 1995;52:1048–60.
2. De Jong JT, Komproe IH, Van Ommeren M, El Masri M, Mesfin A, Khaled N, et al. Lifetime events and posttraumatic stress disorder in 4 postconflict settings. JAMA. 2001;286:555–62.
3. American Psychiatric Association, editor. Diagnostic and statistical manual of mental disorders. 3rd ed. Washington, DC: APA; 1980.
4. American Psychiatric Association, editor. Diagnostic and statistical manual of mental disorders. 4th ed. Washington, DC: APA; 1994.
5. American Psychiatric Association, editor. Diagnostic and statistical manual of mental disorders. 4th ed., text rev. Washington, DC: APA; 2000.