No abstract available
MeSH terms
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Asbestos / adverse effects*
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Asbestosis / blood*
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Asbestosis / immunology
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Dust
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Humans
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Male
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Middle Aged
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Occupational Diseases / blood*
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Occupational Diseases / immunology
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Occupational Exposure / adverse effects*
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Occupational Exposure / analysis
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Retrospective Studies
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Risk Factors
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Ships*
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Smoking / adverse effects