title: Roentgenographic appearance of the human pulmonary acinus.
mesh_terms: D000328:Adult; D001995:Bronchography; D002404:Catheterization; D003287:Contrast Media; D006801:Humans; D008297:Male; D011013:Pneumonectomy; D011650:Pulmonary Alveoli / Q000000981:diagnostic imaging*; D011656:Pulmonary Emphysema / Q000000981:diagnostic imaging; D013635:Tantalum
chemical_list: D003287:Contrast Media; D013635:Tantalum