title: Emphysema and chronic obstructive pulmonary disease.
authors.forename: F M
authors.initials: FM
authors.lastname: Hall
authors.forename: D L
authors.initials: DL
authors.lastname: Levin
mesh_terms: D006801:Humans; D008173:Lung Diseases, Obstructive / Q000000981:diagnostic imaging*; D011656:Pulmonary Emphysema / Q000000981:diagnostic imaging*; D011859:Radiography; D009626:Terminology as Topic