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Knox CM, Chandler D, Short GA, Margolis TP.Knox CM, et al.Ophthalmology. 1998 Jan;105(1):37-44; discussion 44-5. doi: 10.1016/s0161-6420(98)71127-2.Ophthalmology. 1998.PMID: 9442777
Knox CM, Wong IG, Howes EL, Barkin A, Kearney J.Knox CM, et al.Am J Ophthalmol. 1998 Aug;126(2):314-5. doi: 10.1016/s0002-9394(98)00165-2.Am J Ophthalmol. 1998.PMID: 9727531