title: The detection of acute gastrointestinal bleeding using in vivo technetium 99m pertechnetate-labeled erythrocytes.
mesh_terms: D002675:Child, Preschool; D003092:Colitis / Q000209:etiology; D004912:Erythrocytes; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging* / Q000209:etiology; D006463:Hemolytic-Uremic Syndrome / Q000150:complications*; D006801:Humans; D008297:Male; D008722:Methods; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013667:Technetium
chemical_list: D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m