Esophageal motor abnormalities in scleroderma and related diseases.
D003095:Collagen Diseases; D003680:Deglutition Disorders; D004947:Esophagus / Q000503:physiopathology*; D006801:Humans; D013902:Radiography, Thoracic; D012595:Scleroderma, Systemic / Q000503:physiopathology*