Relationship between serum and brain carotenoids, a-tocopherol, and retinol concentrations and cognitive performance in the oldest old from the Georgia Centenarian Study

Johnson EJ, Vishwanathan R, Johnson MA, Hausman DB, Davey A, Scott TM, Green RC, Miller LS, Gearing M, Woodard J, Nelson PT, Chung HY, Schalch W, Wittwer J, Poon LW
Journal of Aging Research February 2013