title: What you need to know about ... chronic obstructive pulmonary disease.
mesh_terms: D001993:Bronchodilator Agents / Q000627:therapeutic use; D005541:Forced Expiratory Volume; D006801:Humans; D010102:Oxygen Inhalation Therapy; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D012907:Smoking / Q000009:adverse effects; D000074606:Smoking Prevention; D014797:Vital Capacity
chemical_list: D001993:Bronchodilator Agents