No abstract available
Publication types
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Research Support, Non-U.S. Gov't
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Review
MeSH terms
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China
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Duodenal Ulcer / epidemiology
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Duodenal Ulcer / microbiology
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Helicobacter Infections / epidemiology*
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Helicobacter pylori*
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Humans
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Peptic Ulcer / epidemiology*
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Peptic Ulcer / microbiology
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Stomach Neoplasms / epidemiology*
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Stomach Neoplasms / microbiology