No abstract available
MeSH terms
-
Aged
-
Aged, 80 and over
-
Humans
-
Middle Aged
-
Pulmonary Disease, Chronic Obstructive / etiology
-
Pulmonary Disease, Chronic Obstructive / prevention & control
-
Pulmonary Disease, Chronic Obstructive / psychology*
-
Smoking / adverse effects
-
Smoking / psychology*
-
Smoking Cessation