title: Transoral versus transnasal esophagogastroduodenoscopy.
authors.affiliation: Department of Endoscopy, Dokkyo Medical University, School of Medicine, 880 Kitakobayashi, Mibu, Shimotsuga, Togichi 321-0293, Japan. nakamurt@dojjyomed.ac.jp
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Nakamura