@inbook{6479001, author={Michael A. Gallo}, editor={Klaassen, Curtis D. and Watkins, John B.}, title={Chapter 1. History and Scope of Toxicology}, booktitle={Casarett & Doull's Essentials of Toxicology, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2010}, url={accesspharmacy.mhmedical.com/content.aspx?aid=6479001} }