Activities of daily living are associated with older adult cognitive status: caregiver versus self-reports
Journal of Applied Gerontology (2013) - Comment
pubmed: 25473924  doi: 10.1177/0733464811405495  issn: 1552-4523  issn: 0733-4648 

L. Stephen Miller, Courtney L. Brown, Meghan B. Mitchell, Gail M. Williamson