1. American Psychiatric Association (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author
2. Antony, M. M., Bieling, P. J., Cox, B. J., Enns, M. W. & Swinson, R. P. (in press). Psychometric properties of the 42-item and 21-item versions of the Depression Anxiety Stress Scales (DASS) in clinical groups and a community sample. Psychological Assessment
3. Trait-state anxiety and adjustment to surgery;Auerbach;Journal of Consulting and Clinical Psychology,1973
4. Beck, A. T. & Steer, R. A. (1990). Beck Anxiety Inventory manual. San Antonio, TX: The Psychological Corporation
5. An inventory for measuring depression;Beck;Archives of General Psychiatry,1961