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3. The number of people with glaucoma worldwide in 2010 and 2020;Quigley;Br J Ophthalmol,2006
4. Global data on visual impairment in the year 2002;Resnikoff;Bull World Health Organ,2004
5. Relationship between optic nerve head microcirculation and visual field loss in glaucoma;Yaoeda;Acta Ophthalmol Scand,2003