No abstract available
MeSH terms
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Anti-Bacterial Agents / therapeutic use*
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Bronchoalveolar Lavage Fluid / microbiology*
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Bronchoalveolar Lavage*
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Cross Infection / prevention & control*
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Female
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Humans
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Infection Control / methods*
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Male
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Middle Aged
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Pneumonia, Ventilator-Associated / drug therapy*
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Sentinel Surveillance*