title: Combination inhaled corticosteroid and long-acting β2-agonist use and severe asthma exacerbations.
authors.forename: Søren
authors.initials: S
authors.lastname: Pedersen
authors.forename: Paul M
authors.initials: PM
authors.lastname: O'Byrne
mesh_terms: D000305:Adrenal Cortex Hormones / Q000008:administration & dosage*; D000318:Adrenergic beta-Agonists / Q000008:administration & dosage*; D001249:Asthma / Q000188:drug therapy* / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D044469:Racial Groups
chemical_list: D000305:Adrenal Cortex Hormones; D000318:Adrenergic beta-Agonists