The nature and surgical treatment of lower esophageal ring (Schatzki's ring).
D000328:Adult; D000368:Aged; D003680:Deglutition Disorders / Q000209:etiology / Q000601:surgery; D004940:Esophageal Stenosis / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011859:Radiography