Changing concepts of COPD.
Mair
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D000818:Animals; D006734:Horse Diseases / Q000175:diagnosis* / Q000453:epidemiology / Q000628:therapy; D006736:Horses; D008173:Lung Diseases, Obstructive / Q000175:diagnosis / Q000453:epidemiology / Q000662:veterinary*; D006113:United Kingdom / Q000453:epidemiology