No abstract available
MeSH terms
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Anti-Bacterial Agents / pharmacology*
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Clarithromycin / pharmacology*
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DNA, Ribosomal / analysis
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Drug Resistance, Bacterial / genetics
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Helicobacter Infections / epidemiology
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Helicobacter Infections / microbiology
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Helicobacter pylori / drug effects*
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Helicobacter pylori / genetics
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Hong Kong
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Humans
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Metronidazole / pharmacology*
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Microbial Sensitivity Tests
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Point Mutation
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Polymerase Chain Reaction
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RNA, Ribosomal, 23S / genetics
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Sequence Analysis, DNA
Substances
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Anti-Bacterial Agents
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DNA, Ribosomal
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RNA, Ribosomal, 23S
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Metronidazole
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Clarithromycin