title: [Two cases of rare earth pneumoconiosis in printing plant workers using carbon arc lamps].
mesh_terms: D001980:Bronchi / Q000032:analysis; D004577:Electron Probe Microanalysis; D006801:Humans; D008297:Male; D008673:Metals, Alkaline Earth / Q000032:analysis; D008875:Middle Aged; D011009:Pneumoconiosis / Q000175:diagnosis*; D011327:Printing
chemical_list: D008673:Metals, Alkaline Earth