Macular pigment optical density and its relationship with serum and dietary levels of lutein and zeaxanthin. Beatty S, Nolan JM, Kavanagh H, O’Donovan O. Archives of Biochemistry and Biophysics. October 2004.

Macular pigment optical density and its relationship with serum and dietary levels of lutein and zeaxanthin. Beatty S, Nolan JM, Kavanagh H, O’Donovan O. Archives of Biochemistry and Biophysics. October 2004.