title: Diagnosing emphysema from the lung scan.
mesh_terms: D000402:Airway Obstruction / Q000175:diagnosis; D001249:Asthma / Q000175:diagnosis; D001991:Bronchitis / Q000175:diagnosis; D006801:Humans; D011023:Pneumonia, Staphylococcal / Q000175:diagnosis; D011655:Pulmonary Embolism / Q000175:diagnosis; D011656:Pulmonary Emphysema / Q000175:diagnosis*; D011658:Pulmonary Fibrosis / Q000000981:diagnostic imaging; D011859:Radiography; D011877:Radionuclide Imaging; D012129:Respiratory Function Tests; D013667:Technetium
chemical_list: D013667:Technetium