Research Article: Work Loss and Direct and Indirect Costs Associated with Parkinson’s Disease
Introduction:
Parkinson’s disease (PD) is a progressive neurodegenerative disease characterized by bradykinesia and other motor and non-motor clinical features. Approximately per , persons ages years and older in North America suffer from PD, and PD is estimated to affect .% of persons ages years and older, with a median age of onset is years old.
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