[A most important measure in prevention of chronic obstructive pulmonary diseases: smoke cessation and avoidance of passive smoking].
Xiao
Dan
D
Wang
Chen
C
D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000517:prevention & control*; D016540:Smoking Cessation; D014028:Tobacco Smoke Pollution / Q000517:prevention & control*
D014028:Tobacco Smoke Pollution