Surgery of certain oesophageal lesions.
D004931:Esophageal Achalasia / Q000601:surgery*; D004947:Esophagus / Q000601:surgery*; D005767:Gastrointestinal Diseases; D006801:Humans; D013274:Stomach Neoplasms
CARDIOSPASM/surgery; ESOPHAGUS/surgery; STOMACH/neoplasms