[Investigation of the operation methods for achalasia (author's transl)].
D000328:Adult; D000368:Aged; D002299:Cardia / Q000601:surgery; D004931:Esophageal Achalasia / Q000601:surgery*; D004944:Esophagoplasty / Q000379:methods; D004947:Esophagus / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged