No abstract available
MeSH terms
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Adult
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Age Factors
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Aged
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Air Pollution
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Anthracosilicosis* / complications
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Anthracosilicosis* / etiology
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Anthracosilicosis* / pathology
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Anthracosilicosis* / prevention & control
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Bronchitis / etiology
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Carbon / adverse effects
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Coal Mining
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Humans
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Life Expectancy
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Macrophages / physiology
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Male
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Middle Aged
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Occupational Diseases
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Pulmonary Emphysema / etiology
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Pulmonary Heart Disease / etiology
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Silicon Dioxide / adverse effects
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Time Factors