No abstract available
MeSH terms
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Alcohol Abstinence
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Alcoholism / blood
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Alcoholism / diagnosis*
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Homocysteine / blood
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Humans
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Methylmalonic Acid / blood
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Optic Atrophy, Hereditary, Leber / physiopathology
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Smoking / physiopathology
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Vision Disorders / physiopathology
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Vitamin B 12 / blood
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Vitamin B 12 Deficiency / blood
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Vitamin B 12 Deficiency / diagnosis*
Substances
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Homocysteine
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Methylmalonic Acid
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Vitamin B 12