This article includes Supplementary Video, available online at .

jws-mds.20722.mpg13682K Shown here are just a few brief segments of the total video compilation series which will be available on the DVD supplement. The edited film sequences are broken down into four categories: 1. Head and neck: 2. Body posture and walking: 3. Balance and festination: 4. Rigidity and other unusual movements: This video presentation has been abbreviated. The full version will appear on theMovementDisorders DVD Supplement, which is issued bi-annually.

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