title: Demonstration of delayed duodenal bleeding by 99Tc labeled red cells.
mesh_terms: D004381:Duodenal Ulcer / Q000000981:diagnostic imaging*; D004912:Erythrocytes; D006801:Humans; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium