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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Duodenal Ulcer / complications
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Duodenal Ulcer / microbiology*
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Duodenitis / complications
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Duodenitis / microbiology
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Female
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Helicobacter pylori / isolation & purification*
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Humans
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Male
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Middle Aged