1. Diagnostic and Statistical Manual of Mental Disorders;American Psychiatric Association,1994
2. Clinical guidelines for establishing remission in patients with depression and anxiety;Ballenger;Journal of Clinical Psychiatry,1999
3. Treatment of major depression: is improvement enough?;Ferrier;Journal of Clinical Psychiatry,1999
4. Structured Clinical Interview for DSM-IV (SCID);First,1997
5. Development of a rating scale for primary depressive illness;Hamilton;British Journal of Social and Clinical Psychology,1967