title: Gastrointestinal bleeding detected with 99mTC-labelled erythrocytes.
mesh_terms: D000328:Adult; D000368:Aged; D011756:Diphosphates; D004912:Erythrocytes / Q000032:analysis / Q000378:metabolism*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000097:blood / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D013667:Technetium; D016698:Technetium Tc 99m Pyrophosphate
chemical_list: D011756:Diphosphates; D016698:Technetium Tc 99m Pyrophosphate; D013667:Technetium