Chronic obstructive pulmonary disease.
Pulmonary Division, ARH Southern West Virginia Clinic, Beckley, USA.
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DL
Rasmussen
D000293:Adolescent; D000328:Adult; D000368:Aged; D002423:Cause of Death; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000209:etiology* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects* / Q000401:mortality; D014903:West Virginia / Q000453:epidemiology