@inbook{1186284860, author={Cynthia C. Norkin}, editor={Norkin, Cynthia C. and White, D. Joyce}, title={The Cervical Spine}, booktitle={Measurement of Joint Motion: A Guide to Goniometry, 5e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={fadavispt.mhmedical.com/content.aspx?aid=1186284860} }