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
Frontal Lobe Degeneration:Clinical, Neuropsychologicaland SPECT Characteristics
Neurol 41:1374-1382, Miller,B.L.,et al, 1991