No abstract available
Publication types
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Clinical Trial
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Multicenter Study
MeSH terms
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Adult
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Clinical Trials as Topic
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Duodenal Ulcer / complications
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Duodenal Ulcer / mortality
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Duodenal Ulcer / surgery*
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Female
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Humans
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Male
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Middle Aged
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Multicenter Studies as Topic
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Peptic Ulcer Perforation / mortality
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Peptic Ulcer Perforation / surgery*
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Prospective Studies
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Random Allocation