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Coal Mining
Smoking
Occupational Diseases
Occupational Exposure
Pneumoconiosis
Lung Diseases
Respiration Disorders
Dust
Forced Expiratory Volume
Vital Capacity
Lung
Time Factors
Cross-Sectional Studies
Respiratory Function Tests
Great Britain
Scotland
Mineral Fibers
Quartz
Polyvinyl Chloride
Polyvinyls
Co-Publications
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6
4
3
2
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