No abstract available
MeSH terms
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Africa / epidemiology
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Developing Countries
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Health Services Accessibility
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Helicobacter Infections / epidemiology*
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Helicobacter pylori / pathogenicity*
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Humans
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Incidence
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Prevalence
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Public Health
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Stomach Neoplasms / epidemiology
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Stomach Neoplasms / microbiology*