@inbook{1000099264, author={Ray L. Watts and David G. Standaert and Jose A. Obeso}, title={IV. Choreatic Disorders: Huntington's Disease}, booktitle={Movement Disorders, 3e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2012}, url={accessphysiotherapy.mhmedical.com/content.aspx?aid=1000099264} }