No abstract available
MeSH terms
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Anti-Bacterial Agents / administration & dosage*
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Clarithromycin / administration & dosage*
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Drug Resistance, Bacterial*
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Female
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Helicobacter Infections* / drug therapy
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Helicobacter Infections* / epidemiology
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Helicobacter pylori*
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Humans
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Male
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Russia / epidemiology
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Stomach Ulcer* / drug therapy
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Stomach Ulcer* / epidemiology
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Stomach Ulcer* / microbiology
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Urban Population
Substances
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Anti-Bacterial Agents
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Clarithromycin