1. Diagnostic and Statistical Manual of Mental Disorders;American Psychiatric Association,1987
2. Diagnostic and Statistical Manual of Mental Disorders: DSM-IV-TR;American Psychiatric Association,2000
3. Screening for depression in well older adults: evaluation of a short form of the CES-D;Andresen;American Journal of Preventive Medicine,1994
4. Depression in late life: review and commentary;Blazer;The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences,2003
5. Cross-validation of a short form of the CES-D in Chinese elderly;Boey;International Journal of Geriatric Psychiatry,1999