title: Asthma mortality: a possible explanation of international variations.
mesh_terms: D000336:Aerosols; D001249:Asthma / Q000401:mortality*; D006801:Humans; D007545:Isoproterenol / Q000008:administration & dosage / Q000009:adverse effects*; D013548:Sweden; D006113:United Kingdom; D014481:United States
chemical_list: D000336:Aerosols; D007545:Isoproterenol