title: Pulmonary scanning in pulmonary embolism.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis; D011655:Pulmonary Embolism / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography; D011877:Radionuclide Imaging; D013667:Technetium; D014978:Xenon
chemical_list: D014978:Xenon; D013667:Technetium