Degenerative Diseases of the Nervous System, Parkinson Disease
Adams & Victors Principles of Neurology, Chp 39, pg 1082, Ropper, A.H.,et al, 2014
Progressive Supranuclear Palsy: A Current Review
The Neurologist 14:79-88, Lubarsky,M. &Juncos,J.L., 2008
Levodopa-Nonresponsive Lewy Body Parkinsonism:Clinicopathologic Study of Two Cases
Neurol 42:1323-1327, Mark,M.H.,et al, 1992