No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Bacterial Infections / epidemiology*
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Female
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Humans
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Lung Diseases / diagnosis
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Lung Diseases / epidemiology
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Male
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Middle Aged
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Pneumonia / epidemiology*
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Poland
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Respiratory Tract Infections / diagnosis
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Respiratory Tract Infections / epidemiology*