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18. Validity of the Dementia Rating Scale in assessing cognitive function in Parkinson's disease. Brown GG; Rahill AA; Gorell JM; McDonald C; Brown SJ; Sillanpaa M; Shults C J Geriatr Psychiatry Neurol; 1999; 12(4):180-8. PubMed ID: 10616865 [TBL] [Abstract][Full Text] [Related]
19. Relationships between extrapyramidal signs and cognitive function in a community-dwelling cohort of patients with Parkinson's disease and normal elderly individuals. Richards M; Stern Y; Marder K; Cote L; Mayeux R Ann Neurol; 1993 Mar; 33(3):267-74. PubMed ID: 8498810 [TBL] [Abstract][Full Text] [Related]