title: Drug interactions and asthma deaths.
mesh_terms: D000318:Adrenergic beta-Agonists / Q000009:adverse effects*; D001249:Asthma / Q000401:mortality*; D004347:Drug Interactions; D006801:Humans; D013806:Theophylline / Q000009:adverse effects*
chemical_list: D000318:Adrenergic beta-Agonists; D013806:Theophylline