@inbook{1113011246, author={Stephen A. Black, DSc, MEd, PT, ATC, CSCS and Eric Shamus, PhD, DPT, PT, CSCS}, editor={Shamus, Eric}, title={PIRIFORMIS SYNDROME}, booktitle={The Color Atlas of Physical Therapy}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessphysiotherapy.mhmedical.com/content.aspx?aid=1113011246} }