title: Asthma--air pollution may make it worse....
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects* / Q000032:analysis; D001249:Asthma / Q000503:physiopathology*; D002648:Child; D006801:Humans; D012129:Respiratory Function Tests; D012720:Severity of Illness Index; D014505:Urban Population
chemical_list: D000393:Air Pollutants