Precipitous Deterioration of Motor Function, Cognition, and Behavior
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Degenerative Diseases of the Nervous System, Parkinson Disease
Adams & Victors Principles of Neurology, Chp 39, pg 1082, Ropper, A.H.,et al, 2014
Does This Patient Have Parkinson Disease?
JAMA 289:347-353, Rao,G.,et al, 2003
Parkinson's Disease
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