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
Lower Motor Neuron Disease with Spinocerebellar Degeneration
Ann Neurol 2:524, Page,R.W.,et al, 1977