No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Aged, 80 and over
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Anemia, Hypochromic / etiology
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Anemia, Hypochromic / pathology*
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Anemia, Macrocytic / etiology
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Anemia, Macrocytic / pathology*
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Biopsy
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Duodenoscopy*
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Duodenum / pathology
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Female
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Humans
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Male
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Middle Aged
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Prospective Studies