The use of technetium in scanning.
D001921:Brain / Q000000981:diagnostic imaging; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging; D008168:Lung / Q000000981:diagnostic imaging; D011859:Radiography; D011877:Radionuclide Imaging; D013667:Technetium; D013961:Thyroid Gland / Q000000981:diagnostic imaging
D013667:Technetium