title: Re: Implications of negative technetium 99m-labeled red blood cell scintigraphy in patients presenting with lower gastrointestinal bleeding.
authors.forename: Lionel S
authors.initials: LS
authors.lastname: Zuckier
mesh_terms: D004912:Erythrocytes / Q000000981:diagnostic imaging*; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D012107:Research Design; D013223:Statistics as Topic; D013667:Technetium
chemical_list: D019275:Radiopharmaceuticals; D013667:Technetium