title: Long acting beta 2 agonists and the risk of life threatening asthma.
authors.forename: P
authors.initials: P
authors.lastname: Ernst
mesh_terms: D000318:Adrenergic beta-Agonists / Q000009:adverse effects* / Q000627:therapeutic use*; D000420:Albuterol / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000627:therapeutic use; D001249:Asthma / Q000139:chemically induced* / Q000188:drug therapy / Q000401:mortality; D005280:Fenoterol / Q000009:adverse effects / Q000627:therapeutic use; D006801:Humans; D016017:Odds Ratio; D000068299:Salmeterol Xinafoate
chemical_list: D000318:Adrenergic beta-Agonists; D005280:Fenoterol; D000068299:Salmeterol Xinafoate; D000420:Albuterol