Functional disease of the oesophagus.
D003680:Deglutition Disorders; D004936:Diverticulum, Esophageal; D004931:Esophageal Achalasia; D004938:Esophageal Neoplasms; D004940:Esophageal Stenosis; D006801:Humans
CARDIOSPASM; DEGLUTITION DISORDERS; ESOPHAGEAL DIVERTICULA; ESOPHAGEAL NEOPLASMS; ESOPHAGEAL STENOSIS