A Young Man with Acute Encephalopathy Loss of Vision, and Upper Motor Neuron Signs
Neurol 86:e173-e176, Elkhider, H.,et al, 2016
Diseases of the Nervous System Caused by Nutritional Deficiency, Vitamin B12 (Cobalamin) Deficiency (Subacute Combined Degeneration)
Adams & Victors Principles of Neurology Chp 41, pg 1172, Ropper, A.H.,et al, 2014