title: Diffuse esophageal spasm: a disorder with more than one cause.
mesh_terms: D003679:Deglutition; D004931:Esophageal Achalasia / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D008365:Manometry; D011859:Radiography