title: Has an Observational Study of Early vs Elective Colonoscopy for Acute Lower Gastrointestinal Hemorrhage Answered Questions That Clinical Trials Could Not?
authors.affiliation: Division of Gastroenterology, Department of Medicine, Harborview Medical Center, University of Washington School of Medicine, Seattle, Washington.
authors.forename: Lisa L
authors.initials: LL
authors.lastname: Strate
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Regenstrief Institute, Inc, Indianapolis, Indiana; Center for Innovation, Roudebush VA Medical Center, Indianapolis, Indiana.
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Imperiale
mesh_terms: D000208:Acute Disease; D003113:Colonoscopy; D006471:Gastrointestinal Hemorrhage; D006801:Humans; D064887:Observational Studies as Topic