title: Mechanisms of bronchoconstriction from nonimmunologic environmental stimuli.
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects; D001249:Asthma / Q000503:physiopathology*; D001980:Bronchi / Q000187:drug effects / Q000503:physiopathology*; D006801:Humans; D005082:Physical Exertion; D013458:Sulfur Dioxide / Q000009:adverse effects; D014887:Weather
chemical_list: D000393:Air Pollutants; D013458:Sulfur Dioxide