title: Radionuclide evaluation of acute gastrointestinal bleeding. Case reports.
mesh_terms: D000208:Acute Disease; D000368:Aged; D003102:Colloids; D004912:Erythrocytes; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011877:Radionuclide Imaging; D013455:Sulfur; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
chemical_list: D003102:Colloids; D013671:Technetium Tc 99m Sulfur Colloid; D013455:Sulfur; D013667:Technetium