@inbook{3502304,
author={Peter Marhofer, MD and Stephan Kapral, MD and Xavier Sala-Blanch, MD},
editor={Hadzic, Admir},
title={Chapter 36. Three-in-One 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=3502304}
}