title: Classification of the esophageal motility disorders.
mesh_terms: D003680:Deglutition Disorders / Q000209:etiology; D004935:Esophageal Diseases / Q000145:classification*; D006801:Humans; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000503:physiopathology; D010146:Pain; D013035:Spasm; D013909:Thorax