2Olson J A, Krinsky N I.FASEB J, 1995, 9 (15):1547.
3Stahl H, et al.Vitamins E and C, !-carotene, and othercarotenoids as antioxidants.Am J Clin Ntru,1995, 62: 1315.
4Rock C L.Carotenoids: biology and treatment.Pharmacol Ther, 1997, 75 (3): 185-197.
5Nishino H, Tokuda H, et al. Cancer prevention by carotenoids.Pure Appl Chem, 1999, 71 (12): 2273-2278.
6Mares-Perlman JA, Millen AE, et al.The body of exidence to support a protective role for lutein and zeaxanthin in delaying chronic disease (overview).The Journal of Nutrition,2002, 132 (3):518-524.