title: Comparability of localization data in transnasal and transoral esophagogastroduodenoscopy.
authors.affiliation: Department of Internal Medicine, Holweide Hospital, City of Cologne Hospitals, Ltd,, Cologne, Germany. aymaz@kliniken-koeln.de
authors.forename: Serhat
authors.initials: S
authors.lastname: Aymaz
authors.forename: Bernd
authors.initials: B
authors.lastname: Krakamp
authors.forename: Oliver
authors.initials: O
authors.lastname: Kirschberg
authors.forename: Rolf
authors.initials: R
authors.lastname: Lefering