No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Autoantibodies / blood*
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Case-Control Studies
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Cohort Studies
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Elastin / immunology*
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Emphysema / blood*
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Emphysema / complications*
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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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Pulmonary Fibrosis / blood*
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Pulmonary Fibrosis / complications*
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Smoking