@inbook{3498551, author={Ban C. H. Tsui, MD and Admir Hadzic, MD}, editor={Hadzic, Admir}, title={Chapter 5. Peripheral Nerve Stimulators & Electrophysiology of Nerve Stimulation}, 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=3498551} }