@inbook{57260846,
author={Ruchir Gupta, MD},
editor={Atchabahian, Arthur and Gupta, Ruchir},
title={Chapter 42. Pulse Oximeter},
booktitle={The Anesthesia Guide},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2013},
url={accessanesthesiology.mhmedical.com/content.aspx?aid=57260846}
}