Aetiology of Optic NeuritisBMJ 2:265, , 1975
Folate, Vitamin B12, and Risk of Ischemic and Hemorrhagic StrokeStroke 36:1426-1431, Guelpen,B.V.,et al, 2005
Organic Disease Presenting as a Psychiatric SyndromePostgrad Med 54:78, , 1973