I think it's fantastic what one can do these days with something like this and what it offers to those with Parkinson’s Disease; I do understand there is a ways to go, but still very promising and I wanted to post this clip for those unaware of this device.
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http://www.break.com/video/parkinson-s-disease-with-and-without-a-neurostimulator-2468834
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http://www.break.com/video/parkinson-s-disease-with-and-without-a-neurostimulator-2468834