title: Was that last colonoscopy really negative? A surprising cause of rectal bleeding in a 75-year-old man.
authors.affiliation: Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.
authors.forename: R Brooks
authors.initials: RB
authors.lastname: Vance
authors.forename: Daniel
authors.initials: D
authors.lastname: Duncan
authors.forename: Evan S
authors.initials: ES
authors.lastname: Dellon
mesh_terms: D000368:Aged; D003113:Colonoscopy; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D005770:Gastrointestinal Neoplasms / Q000150:complications*; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis; D020522:Lymphoma, Mantle-Cell / Q000150:complications*; D008297:Male