No abstract available
MeSH terms
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Adult
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Aged
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Anti-Bacterial Agents / therapeutic use*
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Bronchitis / drug therapy*
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Bronchitis / epidemiology
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Bronchitis / mortality
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China / epidemiology
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Erythromycin / therapeutic use*
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Humans
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Japan / epidemiology
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Male
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Middle Aged
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Treatment Outcome
Substances
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Anti-Bacterial Agents
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Erythromycin