Voice fatigue in myasthenia gravis: the sinking pitch sign.
Walker
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Department of Neurology, Wake Forest University Bowman Gray School of Medicine, Winston Salem, NC 27157-1078, USA.
D004568:Electrodiagnosis; D005260:Female; D006801:Humans; D007821:Laryngeal Muscles / Q000503:physiopathology*; D008875:Middle Aged; D018763:Muscle Fatigue; D009157:Myasthenia Gravis / Q000175:diagnosis* / Q000503:physiopathology*; D014831:Voice