Cricopharyngeal muscle dysfunction in the differential diagnosis of dysphagia in polymyositis.
D000368:Aged; D003680:Deglutition Disorders / Q000175:diagnosis* / Q000503:physiopathology; D003937:Diagnosis, Differential; D004931:Esophageal Achalasia / Q000503:physiopathology*; D005260:Female; D006801:Humans; D009132:Muscles / Q000503:physiopathology*; D009220:Myositis / Q000175:diagnosis* / Q000503:physiopathology; D010609:Pharyngeal Muscles / Q000503:physiopathology*