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
Blindness in a Strict Vegan
NEJM 342:897-898, Milea,D.,et al, 2000