Respiratory disability in coal miners.
D003032:Coal Mining; D004185:Disability Evaluation; D004608:Eligibility Determination / Q000379:methods; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D008173:Lung Diseases, Obstructive / Q000175:diagnosis; D009784:Occupational Diseases / Q000175:diagnosis; D014942:Workers' Compensation