Macular pigment optical density in the elderly: findings in a large biracial Midsouth population sample.
Iannaccone A, Mura M, Gallaher KT, Johnson EJ, Todd WA, Kenyon E, Harris TL, Harris T, Satterfield S, Johnson KC, Kritchevsky SB.
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Invest Ophthalmol Vis Sci. 2007.
PMID: 17389471
Free PMC article.