Pulmonary function in smelter workers.
D000367:Age Factors; D004781:Environmental Exposure; D006801:Humans; D008168:Lung / Q000502:physiology*; D008176:Lung Volume Measurements; D008669:Metallurgy; D012907:Smoking; D013458:Sulfur Dioxide / Q000009:adverse effects; D013997:Time Factors
D013458:Sulfur Dioxide