New international guidelines for chronic obstructive pulmonary disease.
Pierson
D J
DJ
D000574:American Medical Association; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000145:classification / Q000175:diagnosis / Q000628:therapy; D017410:Practice Guidelines as Topic / Q000592:standards; D014481:United States; D014944:World Health Organization