(Q44494550)
Statements
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Cognitive impairment and dementia in Parkinson's disease: a controlled study (English)
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Spokes EG
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Boyd JL
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Cruickshank CA
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Kenn CW
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Madeley P
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Mindham RH
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Oswald AG
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Smith RJ
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1 November 1991
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21
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4
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911-921
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Identifiers
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