The oesophago-gastric sphincter after cardiomyotomy.
D004931:Esophageal Achalasia / Q000601:surgery*; D004947:Esophagus / Q000502:physiology*; D006801:Humans; D013270:Stomach / Q000502:physiology*
CARDIOSPASM/surgery; ESOPHAGUS/physiology; STOMACH/physiology