title: The preventive treatment of asthma.
mesh_terms: D000336:Aerosols; D001249:Asthma / Q000517:prevention & control*; D001507:Beclomethasone / Q000627:therapeutic use; D004205:Cromolyn Sodium / Q000627:therapeutic use; D006801:Humans; D009921:Metaproterenol / Q000627:therapeutic use; D013566:Sympathomimetics / Q000627:therapeutic use; D013726:Terbutaline / Q000627:therapeutic use; D013806:Theophylline / Q000627:therapeutic use
chemical_list: D000336:Aerosols; D013566:Sympathomimetics; D009921:Metaproterenol; D013806:Theophylline; D001507:Beclomethasone; D013726:Terbutaline; D004205:Cromolyn Sodium