title: Motor disorders of the esophagus.
mesh_terms: D003680:Deglutition Disorders / Q000503:physiopathology*; D004935:Esophageal Diseases / Q000503:physiopathology*; D004947:Esophagus / Q000503:physiopathology; D006801:Humans; D008365:Manometry; D013035:Spasm / Q000503:physiopathology*