title: Quantitative relations between exposure to respirable coalmine dust and coalworkers' simple pneumoconiosis in men who have worked as miners but have left the coal industry.
mesh_terms: D003032:Coal Mining; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D009784:Occupational Diseases / Q000000981:diagnostic imaging*; D011658:Pulmonary Fibrosis / Q000000981:diagnostic imaging*; D011859:Radiography