No abstract available
MeSH terms
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Biological Assay
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Bronchiectasis / microbiology*
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Bronchitis / microbiology*
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Drainage
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Humans
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Lung Neoplasms / microbiology*
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Pneumonia / microbiology*
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Pulmonary Emphysema / microbiology*
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Punctures
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Smoking*
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Sputum / microbiology*
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Tobacco Mosaic Virus / isolation & purification*
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Tobacco Mosaic Virus / pathogenicity