No abstract available
Publication types
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Biography
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Classical Article
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Historical Article
MeSH terms
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Adolescent
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Adult
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Age Distribution
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Aged
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Cohort Effect
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Duodenal Ulcer / history*
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Duodenal Ulcer / mortality
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England / epidemiology
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Female
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History, 20th Century
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Humans
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Male
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Middle Aged
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Social Class
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Stomach Ulcer / history*
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Stomach Ulcer / mortality
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Urbanization
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Wales / epidemiology