title: Problems of inhalation therapy.
mesh_terms: D000420:Albuterol / Q000627:therapeutic use*; D001249:Asthma / Q000188:drug therapy*; D001980:Bronchi / Q000187:drug effects; D002986:Clinical Trials as Topic; D005541:Forced Expiratory Volume; D006801:Humans; D010919:Placebos; D011446:Prospective Studies; D012138:Respiratory Therapy; D012189:Retrospective Studies; D014797:Vital Capacity
chemical_list: D010919:Placebos; D000420:Albuterol