[Cardia function--gastroscopic studies].
D002299:Cardia / Q000033:anatomy & histology / Q000502:physiology* / Q000503:physiopathology; D005336:Fiber Optic Technology; D005773:Gastroscopy; D006548:Hernia, Diaphragmatic / Q000175:diagnosis; D006801:Humans; D013272:Stomach Diseases / Q000175:diagnosis