Disorders of esophageal motility.
D003679:Deglutition; D003680:Deglutition Disorders / Q000175:diagnosis / Q000628:therapy; D004931:Esophageal Achalasia / Q000175:diagnosis / Q000628:therapy; D004935:Esophageal Diseases; D004943:Esophagogastric Junction; D004947:Esophagus / Q000033:anatomy & histology / Q000502:physiology; D005764:Gastroesophageal Reflux / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D008365:Manometry; D011312:Pressure; D012595:Scleroderma, Systemic / Q000175:diagnosis; D013035:Spasm / Q000175:diagnosis / Q000628:therapy