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Department of Ophthalmology (M.O., Y.S., S.G., R.S., A.B.), Konya Training and Research
Hospital, Konya, Turkey; Department of Ophthalmology (H.I.Y.), Private Konya Eye Hospital,
Konya, Turkey; and Department of Public Health (L.S.D.), Necmettin Erbakan University,
Faculty of Medicine, Konya, Turkey.