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

Variation in Lutein, β-carotene, and Chlorophyll Concentrations among Brassica oleracea Cultigens and Seasons, Dean A. Kopsell, David E. Kopsell, Mark G. Lefsrud, Joanne Curran-Celentano, Laura E. Dukach
New Hampshire Agricultural Experiment Station Publications