Dietary intake and serum concentrations of lutein and zeaxanthin, but not macular pigment optical density, are related in spouses, Adam J. Wenzel, Joseph P. Sheehan, Joanne D. Burke, Mark G. Lefsrud, Joanne Curran-Celentano
New Hampshire Agricultural Experiment Station Publications

Diet and serum carotenoid concentrations affect macular pigment optical density in adults 45 years and older, Joanne D. Burke, Joanne Curran-Celentano, Adam J. Wenzel
New Hampshire Agricultural Experiment Station Publications