Covinsky, K. E., Cenzer, I. S., Yaffe, K., O’Brien, S., & Blazer, D. G. (2013). Dysphoria and Anhedonia as Risk factors for Disability or Death in Older Persons: Implications for the Assessment of Geriatric Depression.

Covinsky, Kenneth E., Irena Stijacic Cenzer, Kristine Yaffe, Sarah O’Brien, e Dan G. Blazer. Dysphoria and Anhedonia As Risk Factors for Disability or Death in Older Persons: Implications for the Assessment of Geriatric Depression. 2013.

Covinsky, Kenneth E., et al. Dysphoria and Anhedonia As Risk Factors for Disability or Death in Older Persons: Implications for the Assessment of Geriatric Depression. 2013.