(Q53588907)
Statements
The Parkinson's Disease Questionnaire (PDQ-39): development and validation of a Parkinson's disease summary index score. (English)
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Jenkinson C
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Fitzpatrick R
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Peto V
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Greenhall R
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Hyman N
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1 September 1997
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26
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5
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353-357
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Identifiers
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