No abstract available
MeSH terms
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Adult
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Aged
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Aging
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Carcinoembryonic Antigen / analysis*
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Female
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Gastric Juice / immunology*
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Gastric Mucosa / pathology
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Gastritis / immunology*
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Gastritis, Atrophic / immunology*
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Gastritis, Atrophic / pathology
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Humans
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Male
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Middle Aged