Intakes of Vitamins E and C, Carotenoids, Vitamin Supplements, and PD Risk
Neurol 59:1161-1169, Zhang,S.M.,et al, 2002
Intake of Flavonoids, Carotenoids,Vitamins C and E, and Risk of Stroke in Male Smokers
Stroke 31:2301-2306, Hirvonen,T.,et al, 2000