Degenerative Diseases of the Nervous System, Parkinson Disease
Adams & Victors Principles of Neurology, Chp 39, pg 1082, Ropper, A.H.,et al, 2014
Acute, Drug-Induced, Life-Threatening Neurological Syndromes
The Neurologist 4:196-210, Richard,I.H., 1998
Drug Treatment of Parkinson's Disease
BMJ 310:575-579, Quinn,N., 1995