DOI: 10.1055/s-00000019

Fortschritte der Neurologie · Psychiatrie

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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