Achalasia.
D000368:Aged; D003680:Deglutition Disorders / Q000209:etiology; D004035:Diet Therapy; D004931:Esophageal Achalasia / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D004945:Esophagoscopy; D006801:Humans; D007279:Injections, Subcutaneous; D008297:Male; D008688:Methacholine Compounds; D011859:Radiography; D012601:Scopolamine / Q000627:therapeutic use
D008688:Methacholine Compounds; D012601:Scopolamine