Lower esophageal rings, webs, and annular strictures.
D003680:Deglutition Disorders / Q000145:classification / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D004940:Esophageal Stenosis / Q000145:classification / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D005764:Gastroesophageal Reflux / Q000150:complications / Q000601:surgery; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans; D008365:Manometry; D011859:Radiography