title: Retrograde flow pattern on a gastrointestinal bleeding scan.
authors.affiliation: Department of Nuclear Medicine, Medical Center of Delaware, Newark.
authors.forename: P A
authors.initials: PA
authors.lastname: Wise
authors.forename: V V
authors.initials: VV
authors.lastname: Sagar
mesh_terms: D000368:Aged; D004912:Erythrocytes; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium