Chronic motor tic disorder: MedlinePlus Medical Encyclopedia

Chronic motor tic disorder: MedlinePlus Medical Encyclopedia.

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About johncaulk

Born in 1961 and living in the United States, I hold a B.A. in political science and had course work in philosophy, biology and environmental science. I have worked in construction and am a musician. I would be happy to receive and reply to your questions or comments.
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