title: Diagnostic role of upper gastrointestinal endoscopy in patients with inflammatory bowel disease.
authors.affiliation: Department of Gastroenterology, University Hospital, Heraklion Crete, Greece.
authors.forename: C
authors.initials: C
authors.lastname: Zavos
authors.forename: J
authors.initials: J
authors.lastname: Kountouras
authors.forename: P
authors.initials: P
authors.lastname: Katsinelos
authors.forename: N
authors.initials: N
authors.lastname: Zavos
authors.forename: E
authors.initials: E
authors.lastname: Matrella