title: The venerable nasogastric tube.
authors.forename: Felix W
authors.initials: FW
authors.lastname: Leung
mesh_terms: D016099:Endoscopy, Gastrointestinal; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000401:mortality; D006801:Humans; D007441:Intubation, Gastrointestinal; D011379:Prognosis