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Grossman DC, Curry SJ, Owens DK, Barry MJ, Davidson KW, Doubeni CA, və b. "Vision Screening in Children Aged 6 Months to 5 Years: US Preventive Services Task Force Recommendation Statement". JAMA. 318 (9). September 2017: 836–844. doi:10.1001/jama.2017.11260. PMID28873168.