No abstract available
MeSH terms
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Biomedical Research / methods*
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Biopsy
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Endoscopy, Gastrointestinal
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Gastric Mucosa / pathology*
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Humans
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Incidence
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Metaplasia / diagnostic imaging
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Metaplasia / epidemiology
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Metaplasia / pathology
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Population Surveillance / methods*
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Precancerous Conditions / diagnostic imaging
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Precancerous Conditions / epidemiology*
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Precancerous Conditions / pathology
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Prevalence
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Research Design*
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Risk Factors
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Stomach Neoplasms / epidemiology*