No abstract available
Publication types
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Editorial
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Research Support, U.S. Gov't, Non-P.H.S.
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Aged
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Anemia, Pernicious / blood
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Anemia, Pernicious / diagnosis*
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Humans
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Middle Aged
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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