title: Acute hiatal hernia after Heller's operation.
mesh_terms: D004931:Esophageal Achalasia / Q000601:surgery; D005260:Female; D006548:Hernia, Diaphragmatic / Q000209:etiology*; D006551:Hernia, Hiatal / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications