No abstract available
MeSH terms
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Disease Progression
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Gastritis / microbiology*
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Gastritis / pathology
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Helicobacter Infections / microbiology*
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Helicobacter Infections / pathology
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Helicobacter pylori / isolation & purification*
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Humans
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Lymphoma, B-Cell, Marginal Zone / microbiology*
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Polymerase Chain Reaction
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Stomach Neoplasms / microbiology*