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3. Angle-closure glaucoma surveys in greenland eskimos. A preliminary report;Alsbirk;Can J Ophthalmol,1973
4. Biomicroscopic measurement of the optic disc with a high-power positive lens;Ansari-Shahrezaei;Invest Ophthalmol Vis Sci,2001
5. Magnification characteristic of a +90-diopter double-aspheric fundus examination lens;Ansari-Shahrezaei;Invest Ophthalmol Vis Sci,2002