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Invest. Ophthalmol. Vis. Sci.. 2016; 57(12):1518. doi: https://doi.org/

Journal of Vision. 2008; 8(6):117. doi: https://doi.org/10.1167/8.6.117

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Journal of Vision. 2005; 5(8):411. doi: https://doi.org/10.1167/5.8.411