No abstract available
MeSH terms
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Age Factors
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Homocysteine / metabolism
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Humans
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Methylmalonic Acid / metabolism
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Prognosis
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Vitamin B 12 / blood*
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Vitamin B 12 Deficiency / complications
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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