title: Significant exposure to tobacco smoke and underuse of controller medications exacerbate asthma symptoms among Head Start children.
mesh_terms: D018927:Anti-Asthmatic Agents / Q000627:therapeutic use*; D001131:Arkansas; D001249:Asthma / Q000188:drug therapy* / Q000209:etiology*; D002675:Child, Preschool; D006801:Humans; D016487:Parenting; D011203:Poverty; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D018927:Anti-Asthmatic Agents; D014028:Tobacco Smoke Pollution