No abstract available
MeSH terms
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Duodenal Ulcer / epidemiology
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Duodenal Ulcer / etiology*
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Duodenal Ulcer / microbiology
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Duodenum / microbiology
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Helicobacter Infections / epidemiology
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Helicobacter Infections / etiology*
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Helicobacter Infections / microbiology
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Helicobacter pylori / pathogenicity*
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Humans
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Prevalence
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Stomach / microbiology