1. Agency for Health Care Policy and Research. (1993). Clinical Practice Guideline Number 5: Depression In Primary Care. Volume 2: Treatment of Major Depression. U.S. Dept. of Health and Human Services, AHCPR Publication No. 93–0550, Rockville, MD
2. Bartels S. J., Coakley E. H., Zubritsky C., Ware J. H., Miles K. M., Arean P. A., Chen H., Oslin D. W., Llorente M. D., Costantino G., Quijano L., McIntyre J. S., Linkins K. W., Oxman T. E., Maxwell J., Levkoff S. E., the PRISM-E Investigators. (2004). Improving access to geriatric mental health services: A randomized trial comparing treatment engagement with integrated versus enhanced referral care for depression, anxiety, and at-risk alcohol use. American Journal of Psychiatry 16: 1455–1462
3. Charbonneau A., Rosen A. K., Ash A. S., Owen R. R., Kader B, Spiro A., Hankin C., Herz L. R., Pugh M. J. V., Kazis L., Miller D. R., Berlowitz D. R. (2003). Measuring the quality of depression care in a large integrated health system. Medical Care 41: 669–680
4. Department of Veterans Affairs and Department of Defense (2000). Guidelines for the Treatment of Depression. Available at: http://www.oqp.med.va.gov/cpg/MDD/G/MDD_about.htm
5. Donabedian A. (1990). Specialization in clinical performance monitoring. What it is and how to achieve it. Quality Assurance and Utilization Review 5: 114–120