Detection of gastrointestinal hemorrhage.
D003937:Diagnosis, Differential; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D011877:Radionuclide Imaging; D013455:Sulfur; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
D013671:Technetium Tc 99m Sulfur Colloid; D013455:Sulfur; D013667:Technetium