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jws-mds.21047.mpg13619K Segment 1 . Abnormal choreic movements of the left hemibody induced by right monopolar stimulation on contact 6. The choreic movement appeared a few seconds after the change of the contact of stimulation. Segment 2 . Progressive disappearance of the abnormal movements when the contact of stimulation was changed to a more ventral one (contact 5).

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