The gastroesophageal flap valve.
Hill
L D
LD
Kozarek
R A
RA
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