Chronic obstructive pulmonary emphysema; a disease of smokers.
D004646:Emphysema; D006801:Humans; D008168:Lung; D011656:Pulmonary Emphysema / Q000209:etiology*; D012907:Smoking / Q000009:adverse effects*
EMPHYSEMA, PULMONARY/etiology and pathogenesis; SMOKING/injurious effects