title: Yield of colonoscopy for nonacute rectal bleeding.
authors.forename: Mandeep S
authors.initials: MS
authors.lastname: Sawhney
authors.forename: Douglas B
authors.initials: DB
authors.lastname: Nelson
mesh_terms: D003113:Colonoscopy; D016208:Databases, Factual; D006471:Gastrointestinal Hemorrhage / Q000473:pathology*; D006801:Humans; D015337:Multicenter Studies as Topic; D012002:Rectal Diseases / Q000473:pathology*