Affiliation: | 1.Department of Ophthalmology, School of Medicine, University of Pittsburgh, 203 Lothrop St., Pittsburgh, PA, 15213, USA ;2.Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran ;3.Ophthalmic Epidemiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran ;4.Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ;5.Department of Ophthalmology, Baqiyatallah University of Medical Sciences, Tehran, Iran ; |