No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Cimetidine / therapeutic use*
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Duodenal Ulcer / epidemiology
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Guanidines / therapeutic use*
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Humans
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Peptic Ulcer / drug therapy
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Peptic Ulcer / surgery*
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Stomach Ulcer / epidemiology
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Surgical Procedures, Operative / statistics & numerical data
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Surgical Procedures, Operative / trends*
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United States