@inbook{3501071,
author={Jerry D. Vloka, MD and Tony Tsai, MD and Admir Hadzic, MD},
editor={Hadzic, Admir},
title={Chapter 23. Cervical Plexus Block},
booktitle={NYSORA Textbook of Regional Anesthesia and Acute Pain Management},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2007},
url={accessanesthesiology.mhmedical.com/content.aspx?aid=3501071}
}