No abstract available
MeSH terms
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Adult
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Amblyopia / blood*
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Amblyopia / etiology
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Child
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Child, Preschool
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Cyanides / metabolism
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Female
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Humans
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Male
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Metabolism, Inborn Errors / etiology
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Neuritis / blood
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Optic Atrophy / blood
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Optic Atrophy / genetics*
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Scotoma
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Smoking / complications
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Vitamin B 12 / blood*
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Vitamin B 12 / metabolism
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Vitamin B 12 Deficiency