Calhoun, P. S., Sampson, W. S., Bosworth, H. B., Feldman, M. E., Kirby, A. C., Hertzberg, M. A., … Beckham, J. C. (2000). Drug use and validity of substance use self-reports in veterans seeking help for posttraumatic stress disorder. Journal of Consulting and Clinical Psychology, 68(5), 923–927. https://doi.org/10.1037/0022-006x.68.5.923

Calhoun, Patrick S., William S. Sampson, Hayden B. Bosworth, Michelle E. Feldman, Angela C. Kirby, Michael A. Hertzberg, Timothy P. Wampler, Faye Tate-Williams, Scott D. Moore, and Jean C. Beckham. “Drug use and validity of substance use self-reports in veterans seeking help for posttraumatic stress disorder.” Journal of Consulting and Clinical Psychology 68, no. 5 (2000): 923–27. https://doi.org/10.1037/0022-006x.68.5.923.

Calhoun PS, Sampson WS, Bosworth HB, Feldman ME, Kirby AC, Hertzberg MA, et al. Drug use and validity of substance use self-reports in veterans seeking help for posttraumatic stress disorder. Journal of Consulting and Clinical Psychology. 2000;68(5):923–7.

Calhoun, Patrick S., et al. “Drug use and validity of substance use self-reports in veterans seeking help for posttraumatic stress disorder.” Journal of Consulting and Clinical Psychology, vol. 68, no. 5, American Psychological Association (APA), 2000, pp. 923–27. Crossref, doi:10.1037/0022-006x.68.5.923.

Calhoun PS, Sampson WS, Bosworth HB, Feldman ME, Kirby AC, Hertzberg MA, Wampler TP, Tate-Williams F, Moore SD, Beckham JC. Drug use and validity of substance use self-reports in veterans seeking help for posttraumatic stress disorder. Journal of Consulting and Clinical Psychology. American Psychological Association (APA); 2000;68(5):923–927.