title: Prospective comparison of nasal versus oral insertion of a thin video endoscope in healthy volunteers.
authors.forename: A
authors.initials: A
authors.lastname: Zaman
authors.forename: J G
authors.initials: JG
authors.lastname: Lee
mesh_terms: D020776:Endoscopes, Gastrointestinal; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D007440:Intubation / Q000379:methods*; D009055:Mouth; D009666:Nose; D011446:Prospective Studies; D014741:Video Recording / Q000295:instrumentation*