No abstract available
Publication types
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Comparative Study
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Editorial
MeSH terms
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Adult
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Coal Mining
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Cross-Sectional Studies
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Dust / adverse effects*
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Humans
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Longitudinal Studies
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Lung Diseases / etiology
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Lung Diseases / mortality*
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Lung Diseases, Obstructive / etiology
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Lung Diseases, Obstructive / mortality
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Male
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Middle Aged
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Occupational Diseases / etiology
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Occupational Diseases / mortality*
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Pneumoconiosis / etiology
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Pneumoconiosis / mortality
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Smoking*