title: The first 15 cm are important in upper gastrointestinal endoscopy.
authors.affiliation: Southampton General Hospital.
authors.forename: A S
authors.initials: AS
authors.lastname: Rai
authors.forename: H
authors.initials: H
authors.lastname: Steer
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000150:complications*; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014062:Tongue Neoplasms / Q000150:complications*