title: Combination therapy for exercise intolerance in COPD.
authors.forename: R
authors.initials: R
authors.lastname: Casaburi
mesh_terms: D001993:Bronchodilator Agents / Q000627:therapeutic use; D003131:Combined Modality Therapy / Q000379:methods; D005081:Exercise Therapy / Q000379:methods*; D017079:Exercise Tolerance; D006801:Humans; D010102:Oxygen Inhalation Therapy / Q000379:methods; D029424:Pulmonary Disease, Chronic Obstructive / Q000628:therapy*
chemical_list: D001993:Bronchodilator Agents