No abstract available
MeSH terms
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Adult
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Aged
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Aspergillus / isolation & purification
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Fungi / isolation & purification*
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Health Surveys
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Humans
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Male
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Maryland
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Middle Aged
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Mitosporic Fungi / isolation & purification
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Occupations
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Penicillium / isolation & purification
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Respiratory Tract Infections / epidemiology
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Respiratory Tract Infections / microbiology
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Sputum / microbiology*