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Azuara-Blanco A, Wilson RP, Spaeth GL, Schmidt CM, Augsburger JJ.Azuara-Blanco A, et al.Br J Ophthalmol. 1999 Feb;83(2):151-6. doi: 10.1136/bjo.83.2.151.Br J Ophthalmol. 1999.PMID: 10396189Free PMC article.