title: Radionuclide detection of gastrointestinal bleeding.
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging; D000368:Aged; D003102:Colloids; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006470:Hemorrhage / Q000000981:diagnostic imaging; D006801:Humans; D008467:Meckel Diverticulum / Q000000981:diagnostic imaging; D011859:Radiography; D011877:Radionuclide Imaging; D012002:Rectal Diseases / Q000000981:diagnostic imaging; D012810:Sigmoid Diseases / Q000000981:diagnostic imaging; D013670:Sodium Pertechnetate Tc 99m; D013455:Sulfur; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
chemical_list: D003102:Colloids; D013671:Technetium Tc 99m Sulfur Colloid; D013455:Sulfur; D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m