No abstract available
MeSH terms
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Africa / epidemiology
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Alcohol Drinking
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Asia / epidemiology
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Diet / adverse effects*
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Duodenal Ulcer / epidemiology*
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Duodenal Ulcer / etiology
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Europe
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Female
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Humans
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India / epidemiology
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Male
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Pacific Islands / epidemiology
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Stomach Ulcer / epidemiology*
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Stomach Ulcer / etiology