Diseases of the Nervous System Caused by Nutritional Deficiency, Pellagra (Niacin, Nicotinic Acid, B3 Deficiency)
Adams & Victors Principles of Neurology Chp 41, pg 1170, Ropper, A.H.,et al, 2014
Acute, Drug-Induced, Life-Threatening Neurological Syndromes
The Neurologist 4:196-210, Richard,I.H., 1998