No abstract available
MeSH terms
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Adolescent
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Adult
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Age Factors
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Amblyopia / epidemiology
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Astigmatism / epidemiology
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Child
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Child, Preschool
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Humans
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Hyperopia / epidemiology
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Infant
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Infant, Newborn
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Myopia / congenital
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Myopia / epidemiology
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Refraction, Ocular* / physiology
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Refractive Errors / epidemiology*
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Strabismus / epidemiology