title: Effect of 0.5 ppm sulfur dioxide on the respiratory function of normal and asthmatic subjects.
mesh_terms: D000328:Adult; D001249:Asthma / Q000503:physiopathology*; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008297:Male; D012119:Respiration / Q000187:drug effects*; D013147:Spirometry; D013458:Sulfur Dioxide / Q000494:pharmacology*
chemical_list: D013458:Sulfur Dioxide