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Glen FC, Crabb DP, Smith ND, Burton R, Garway-Heath DF.Glen FC, et al. Among authors: crabb dp.Invest Ophthalmol Vis Sci. 2012 Jun 14;53(7):3629-37. doi: 10.1167/iovs.11-8538.Invest Ophthalmol Vis Sci. 2012.PMID: 22511628