title: Quartz and pneumoconiosis in coal miners.
mesh_terms: D003032:Coal Mining; D006801:Humans; D011791:Quartz / Q000009:adverse effects*; D012822:Silicon Dioxide / Q000009:adverse effects*; D012829:Silicosis / Q000209:etiology*
chemical_list: D011791:Quartz; D012822:Silicon Dioxide