title: Acute lower intestinal bleeding: part I: clinical presentation and diagnosis.
authors.affiliation: Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri, USA.
authors.forename: G R
authors.initials: GR
authors.lastname: Zuckerman
authors.forename: C
authors.initials: C
authors.lastname: Prakash
mesh_terms: D000208:Acute Disease; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D012007:Rectum