@inbook{1000099276, author={Ray L. Watts and David G. Standaert and Jose A. Obeso}, title={VI. Other Movement Disorders}, booktitle={Movement Disorders, 3e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2012}, url={neurology.mhmedical.com/content.aspx?aid=1000099276} }