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Silverberg M, Schuler E, Veronneau-Troutman S, Wald K, Schlossman A, Medow N.Silverberg M, et al.Arch Ophthalmol. 1999 Jul;117(7):900-3. doi: 10.1001/archopht.117.7.900.Arch Ophthalmol. 1999.PMID: 10408454
Cho M, Athanikar A, Paccione J, Wald KJ.Cho M, et al. Among authors: wald kj.Br J Ophthalmol. 2010 May;94(5):597-9. doi: 10.1136/bjo.2008.149724. Epub 2009 Oct 12.Br J Ophthalmol. 2010.PMID: 19822922