[Chronic obstructive pulmonary disease].
D001993:Bronchodilator Agents / Q000627:therapeutic use*; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy*; D012129:Respiratory Function Tests; D016540:Smoking Cessation
D001993:Bronchodilator Agents
Keuhkoahtaumatauti.