No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Child
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Female
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Gastrointestinal Diseases / epidemiology*
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Gastrointestinal Diseases / etiology
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Humans
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Malaysia
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Male
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Medicine, Chinese Traditional
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Middle Aged
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Peptic Ulcer / epidemiology
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Peptic Ulcer / etiology
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Racial Groups
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Smoking