title: Esophagogastric junction opening: does it explain the difference between normal subjects and patients with reflux disease?
mesh_terms: D004943:Esophagogastric Junction / Q000503:physiopathology*; D005764:Gastroesophageal Reflux / Q000503:physiopathology*; D006551:Hernia, Hiatal / Q000503:physiopathology*; D006801:Humans