title: Opioid-induced Lower Esophageal Sphincter Dysfunction.
authors.affiliation: Digestive Functional Disorders Unit, Gastroenterology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
authors.forename: Esteban Sáez
authors.initials: ES
authors.lastname: González
authors.affiliation: Digestive Functional Disorders Unit, Gastroenterology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
authors.forename: Vicente Ortiz
authors.initials: VO
authors.lastname: Bellver
authors.affiliation: Digestive Functional Disorders Unit, Gastroenterology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
authors.forename: Francia Carolina Díaz
authors.initials: FC
authors.lastname: Jaime
authors.affiliation: Digestive Functional Disorders Unit, Gastroenterology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
authors.forename: Juan Antonio Ortuño
authors.initials: JA
authors.lastname: Cortés
authors.affiliation: Digestive Functional Disorders Unit, Gastroenterology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain.|Department of Medicine, Universitat de Valencia, Valencia, Spain.
authors.forename: Vicente Garrigues
authors.identifier: http://orcid.org/0000-0002-3237-9145
authors.initials: VG
authors.lastname: Gil