title: The attack rate of progressive massive fibrosis in British coalminers.
mesh_terms: D000367:Age Factors; D003032:Coal Mining; D004391:Dust; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D011009:Pneumoconiosis / Q000150:complications / Q000453:epidemiology; D011658:Pulmonary Fibrosis / Q000150:complications / Q000000981:diagnostic imaging / Q000453:epidemiology*; D011859:Radiography; D012606:Scotland; D012822:Silicon Dioxide; D006113:United Kingdom; D014852:Wales
chemical_list: D004391:Dust; D012822:Silicon Dioxide