title: The gastroesophageal flap valve.
authors: L D
authors: LD
authors: Hill
authors: R A
authors: RA
authors: Kozarek
mesh_terms: D016145:Endoscopy, Digestive System; D004943:Esophagogastric Junction / Q000033:anatomy & histology* / Q000502:physiology; D005764:Gastroesophageal Reflux / Q000473:pathology / Q000503:physiopathology; D006551:Hernia, Hiatal / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D014741:Video Recording