Evaluation of problems of the proximal stomach and esophagus.
D002299:Cardia / Q000601:surgery; D004931:Esophageal Achalasia / Q000601:surgery; D004935:Esophageal Diseases / Q000175:diagnosis / Q000601:surgery*; D004938:Esophageal Neoplasms / Q000628:therapy; D004943:Esophagogastric Junction / Q000601:surgery*; D004945:Esophagoscopy; D006548:Hernia, Diaphragmatic / Q000601:surgery; D006801:Humans; D013272:Stomach Diseases / Q000175:diagnosis / Q000601:surgery*; D013274:Stomach Neoplasms / Q000628:therapy