title: [Rings and membranes of the esophagus].
mesh_terms: D003680:Deglutition Disorders / Q000000981:diagnostic imaging / Q000209:etiology*; D004940:Esophageal Stenosis / Q000000981:diagnostic imaging / Q000209:etiology*; D004945:Esophagoscopy; D004947:Esophagus / Q000002:abnormalities*; D006801:Humans; D008365:Manometry; D011379:Prognosis; D011859:Radiography
vernacular_title: Ringe und Membranen des Oesophagus.