Insufficiency of the cardia.
D002299:Cardia / Q000503:physiopathology* / Q000601:surgery*; D004940:Esophageal Stenosis / Q000209:etiology; D004941:Esophagitis / Q000209:etiology; D005500:Follow-Up Studies; D005764:Gastroesophageal Reflux / Q000209:etiology; D006548:Hernia, Diaphragmatic; D006801:Humans; D006863:Hydrogen-Ion Concentration