No abstract available
Publication types
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Letter
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Observational Study
MeSH terms
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Aged
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Anemia, Macrocytic / blood
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Anemia, Macrocytic / etiology*
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Anemia, Macrocytic / pathology
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Cross-Sectional Studies
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Erythrocyte Indices
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Erythrocytes / metabolism
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Erythrocytes / pathology
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Erythrocytes, Abnormal / pathology
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Female
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Folic Acid / blood
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Hematologic Diseases / blood
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Hematologic Diseases / etiology*
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Hematologic Diseases / pathology
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Humans
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Male
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Middle Aged
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Risk Factors
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Smoking / adverse effects*
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Vitamin B 12 / blood