RT Journal Article SR Electronic T1 Mild cognitive impairment: Challenges in research and in practice JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 853 OP 854 DO 10.3949/ccjm.79a.12109 VO 79 IS 12 A1 Okhravi, Hamid R. A1 Palmer, Robert M. YR 2012 UL http://www.ccjm.org/content/79/12/853.abstract AB