The classification and quantification of emphysema.
D001982:Bronchial Diseases / Q000473:pathology; D004106:Dilatation / Q000473:pathology; D006801:Humans; D011650:Pulmonary Alveoli / Q000473:pathology; D011652:Pulmonary Circulation; D011656:Pulmonary Emphysema / Q000145:classification* / Q000473:pathology