Pneumatic dilatation of lower esophageal ring.
D000388:Air; D002933:Cineradiography; D003680:Deglutition Disorders / Q000628:therapy; D004106:Dilatation; D004940:Esophageal Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D004945:Esophagoscopy; D005500:Follow-Up Studies; D006801:Humans; D008722:Methods