title: Decline in cognitive function in Parkinson's disease may be due to dementia with Lewy bodies.
authors.forename: J
authors.initials: J
authors.lastname: Grace
authors.forename: I G
authors.initials: IG
authors.lastname: McKeith
mesh_terms: D003072:Cognition Disorders / Q000209:etiology*; D006212:Hallucinations / Q000209:etiology; D006801:Humans; D016631:Lewy Bodies; D010300:Parkinson Disease / Q000188:drug therapy*; D017211:Treatment Failure