title: Early motor unit disease masquerading as psychogenic breathy dysphonia: a clinical case presentation.
mesh_terms: D000328:Adult; D003680:Deglutition Disorders / Q000209:etiology; D003937:Diagnosis, Differential; D004491:Edrophonium; D004576:Electromyography; D005260:Female; D006801:Humans; D009157:Myasthenia Gravis / Q000175:diagnosis* / Q000188:drug therapy; D009460:Neurologic Examination; D009497:Neurotic Disorders / Q000175:diagnosis*; D011729:Pyridostigmine Bromide / Q000627:therapeutic use; D013064:Speech Disorders / Q000175:diagnosis*; D014826:Vocal Cord Paralysis / Q000175:diagnosis
chemical_list: D004491:Edrophonium; D011729:Pyridostigmine Bromide