DOI:
10.1055/s-00000019
Fortschritte der Neurologie · Psychiatrie
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References
Jenkinson C, Fitzpatrick RAY, Peto VIV. et al.
The Parkinson’s Disease Questionnaire (PDQ-39): development and validation of a Parkinson’s disease summary index score.
Age ageing 1997;
26: 353-357
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