Surgical treatment of achalasia.
D003680:Deglutition Disorders / Q000209:etiology; D004931:Esophageal Achalasia / Q000601:surgery*; D004935:Esophageal Diseases / Q000601:surgery*; D004939:Esophageal Perforation / Q000209:etiology; D006801:Humans; D011183:Postoperative Complications