Retinitis Pigmentosa
Surv Ophthalmol 33:137-177, Pagon,R.A., 1988
Diseases of the Nervous System Caused by Nutritional Deficiency, Vitamin E Deficiency
Adams & Victors Principles of Neurology Chp 41, pg 1176, Ropper, A.H.,et al, 2014
The Expansion of the CAG Repeat in Ataxin-2 is a Frequent Cause of Autosomal Dominant Spinocerebellar Ataxia
Neurol 49:1009-1013, Lorenzetti,D.,et al, 1997
Lower Motor Neuron Disease with Spinocerebellar Degeneration
Ann Neurol 2:524, Page,R.W.,et al, 1977