title: Lower-zone emphysema in young patients without alpha1-antitrypsin deficiency.
mesh_terms: D000328:Adult; D001344:Autopsy; D001991:Bronchitis / Q000150:complications; D005260:Female; D006801:Humans; D008168:Lung / Q000473:pathology; D008297:Male; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011656:Pulmonary Emphysema / Q000097:blood* / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D011859:Radiography; D012129:Respiratory Function Tests; D012907:Smoking / Q000150:complications; D013147:Spirometry; D000515:alpha 1-Antitrypsin
chemical_list: D000515:alpha 1-Antitrypsin