title: Useful methods of therapy.
mesh_terms: D000336:Aerosols; D000402:Airway Obstruction / Q000188:drug therapy / Q000628:therapy; D001991:Bronchitis / Q000628:therapy; D001993:Bronchodilator Agents / Q000008:administration & dosage; D002908:Chronic Disease; D004417:Dyspnea / Q000628:therapy; D004646:Emphysema / Q000628:therapy; D006801:Humans; D026741:Physical Therapy Modalities; D012138:Respiratory Therapy; D012140:Respiratory Tract Diseases / Q000628:therapy*
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents