title: Epidemiology of COPD. State of the art.
mesh_terms: D000328:Adult; D000397:Air Pollution / Q000009:adverse effects; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology; D012141:Respiratory Tract Infections / Q000150:complications; D012306:Risk; D012907:Smoking; D013223:Statistics as Topic; D014481:United States