No abstract available
MeSH terms
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Adolescent
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Adult
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Aerosols
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Aged
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Disease Outbreaks / etiology*
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Enterobacteriaceae Infections / epidemiology*
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Equipment and Supplies, Hospital
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Female
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Humans
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Male
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Middle Aged
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Oxygen Inhalation Therapy / adverse effects*
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Respiratory System / microbiology
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Respiratory Tract Infections / etiology*
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Serratia marcescens / isolation & purification*
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Sputum / microbiology
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Sterilization
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Ultrasonics