title: Radiological changes and fibre exposure in chrysotile workers aged 60-69 years at Thetford Mines.
mesh_terms: D000368:Aged; D001194:Asbestos / Q000009:adverse effects*; D017632:Asbestos, Serpentine; D004391:Dust / Q000009:adverse effects*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D008906:Mining; D011859:Radiography; D012907:Smoking
chemical_list: D017632:Asbestos, Serpentine; D004391:Dust; D001194:Asbestos