Facts and figures. Chronic obstructive pulmonary disease revisited.
D000553:Ambulatory Care / Q000706:statistics & numerical data*; D001249:Asthma / Q000453:epidemiology / Q000628:therapy; D006306:Health Surveys; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000453:epidemiology*; D008329:Managed Care Programs / Q000191:economics / Q000592:standards; D010351:Patient Discharge / Q000706:statistics & numerical data; D015995:Prevalence; D014481:United States / Q000453:epidemiology