No abstract available
MeSH terms
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Adolescent
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Adult
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Bronchitis / etiology*
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Bronchitis / metabolism
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Bronchitis / pathology
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Connective Tissue Diseases / complications*
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Connective Tissue Diseases / metabolism
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Connective Tissue Diseases / pathology
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Female
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Fluorescent Antibody Technique
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Humans
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Immunoglobulins / metabolism
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Lung / pathology
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Male
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Middle Aged
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Radiography, Thoracic