title: Correlation of regional densitometry patterns, radiological appearances, and pulmonary function tests in chronic bronchitis and emphysema.
mesh_terms: D015502:Absorptiometry, Photon; D000328:Adult; D000368:Aged; D000402:Airway Obstruction; D001991:Bronchitis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D011656:Pulmonary Emphysema / Q000175:diagnosis* / Q000000981:diagnostic imaging* / Q000503:physiopathology; D013147:Spirometry
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen