title: Mild cognitive impairment in Parkinson's disease: millstone or milestone?
authors.forename: David J
authors.initials: DJ
authors.lastname: Burn
authors.forename: Roger A
authors.initials: RA
authors.lastname: Barker
mesh_terms: D060825:Cognitive Dysfunction / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D018450:Disease Progression; D006801:Humans; D009483:Neuropsychological Tests; D010300:Parkinson Disease / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology