RT Journal Article SR Electronic T1 Cognitive impairment in older adults: A guide to assessment JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 579 OP 581 DO 10.7861/clinmedicine.10-6-579 VO 10 IS 6 A1 John M Starr YR 2010 UL http://www.rcpjournals.org/content/10/6/579.abstract