Benign disorders of the lower esophagus.
D003964:Diaphragm; D004194:Disease; D004931:Esophageal Achalasia; D004935:Esophageal Diseases; D004947:Esophagus; D006547:Hernia; D006548:Hernia, Diaphragmatic
CARDIOSPASM; ESOPHAGUS/diseases; HERNIA, DIAPHRAGMATIC