title: Longitudinal evaluation of pulmonary function in copper smelter workers' exposure to sulfur dioxide.
mesh_terms: D003300:Copper; D004781:Environmental Exposure; D006801:Humans; D008137:Longitudinal Studies; D008168:Lung / Q000187:drug effects* / Q000503:physiopathology; D008669:Metallurgy; D013458:Sulfur Dioxide / Q000009:adverse effects*
chemical_list: D013458:Sulfur Dioxide; D003300:Copper