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Chew, Emily Y., et al. “The Age-related Eye Disease Study 2 (AREDS2).” Ophthalmology, vol. 119, no. 11, Elsevier BV, Nov. 2012, pp. 2282–89. Crossref, doi:10.1016/j.ophtha.2012.05.027.

Chew EY, Clemons T, SanGiovanni JP, Danis R, Domalpally A, McBee W, Sperduto R, Ferris FL. The Age-related Eye Disease Study 2 (AREDS2). Ophthalmology. Elsevier BV; 2012 Nov;119(11):2282–2289.