All

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 C08 Respiratory Tract Diseases D012140 +
  C08.381 Lung Diseases D008171 +
   C08.381.495 Lung Diseases, Obstructive D008173 +
    C08.381.495.389 Pulmonary Disease, Chronic Obstructive D029424 +
     C08.381.495.389.750 Pulmonary Emphysema D011656 +
      C08.381.495.389.750.500 Lung, Hyperlucent D019568